It’s hard to think of a more emotionally grueling and uplifting movie this year than Room. It drops you right into a scary world and, thanks to its carefully balanced tone, the film eschews sensationalism and gets at the beating heart of its survival story, namely the love and protection of a mother for her son. It is an emotionally powerful story that hits the big moments, the small moments, and everything in between. It left me analyzing it and rethinking it for hours, the repercussions still reverberating through me.

Ma (Brie Larson) has been held in a single soundproof room for seven years, the captive of an older man who is termed “Old Nick” (Sean Bridgers). Complicating matters is that Ma has a five-year-old son Jack (Jacob Tremblay) born into this captivity. It is the only world he’s known. To spare him the full horror of their circumstances, Ma has created an elaborate world for him that only exists in Room. After his fifth birthday, Ma tries speaking honestly to her son, lifting the veil of kind fabrications. Together they will scheme to escape their one-room world, but it comes with tremendous cost.

It would be easy to fall onto the more unseemly elements of this harrowing story and linger on just how bad things are and the horrifying lengths that Ma has to go through to survive. Director Lenny Abrahamson (Frank) doesn’t have to wallow in depravity to get its point across. There’s a sensitivity that manages to temper some of the abuse in a manner that won’t make you run out of the room screaming. When Old Nick enters the room for his special time with Ma, we don’t need explicit detail to understand what is happening and what Ma is shielding Jack from by demanding he stay in the closet. The reality of their captivity is enough without underlining the worst of the worst for the lowest common denominator. The emotional weight of everything is clear without having to be bludgeoned. The implications are always just peaking around the corners from the safer version of reality Ma has proposed to protect her child. As the audience, we can see the cracks, we can see her front, and we can see the effort and the toll it’s taking on Ma. The stakes are clear as well, and so when Ma is instructing Jack and preparing him on their joint escape plan, you’ll start to feel waves of anxiety travel through your body. I was shaking with suspense that something could go wrong but also because Ma and Jack are such vulnerable characters that rely upon one another completely. I knew what was going to happen in broad strokes but I was still on the edge of my seat and that’s because the movie made me deeply care about the characters and their plight. The escape scene was on par with some of the better suspense sequences in the equally brilliant Sicario.

It’s not really a spoiler to say that Ma and Jack do get out of their one-room prison because the second half of the film deals with the ongoing consequences and challenges of adjustment. We’d like to think that we can be plugged into our old lives after spending time away, but that’s just not how things work, let alone for people who have experienced substantial psychological and physical trauma. Ma is struggling to readjust to her old life under the care of her mother, Nancy (Joan Allen). She looks through old high school pictures and you can tell she laments “what could have been” and even bears some resentment for her old friends who got to live the lives she should have had. Just because she’s free doesn’t mean she’s better. Her father Robert (William H. Macy), since divorced from Ma’s mother, can’t even look at Jack because of the pain it causes; Jack is a child of rape, but Ma demands he be acknowledged as her flesh-and-blood, and even that can be too much too soon for Robert. He’s more about seeking justice through the courts and as a result stays on the peripheral of the story for most of the movie. There is no exact time table for PTSD and Ma goes through highs and lows, none lower than when pressed with the question of why she held onto Jack after he was born. Would he not have had a better life in someone else’s care, assuming Old Nick would have abandoned him rather than kill his own blood? It’s a hard question and it stings.

For an obviously punishing story about the worst of humanity, I am not kidding when I say Room is an uplifting film. The darkness is easy to identify and Old Nick is a fearsome and all too real antagonist, one who could roam our very streets in anonymity. However, what stays with me several days after watching Room is not the suffering but the resiliency of spirit, the knack human beings have to persevere amid the worst. Ma’s recovery is rockier but more understandable for us to trace and relate with. Hers is an experience where she can finally begin to focus on something other than her child’s safety and deliverance, namely her own well-being. For Jack, there is no playbook. He’s spent his entire life inside a small room and never seen the outside world. His sense of understanding has been extremely limited and yet his sense of exploration is alive. Jack slowly and surely builds trusting relationships with Ma’s relatives, engaging in other activities, and acclimating to his new surroundings, reforming his sense of the world. It’s ultimately Jack who is able to make the greatest breakthrough to his mother, and it’s this moment of sacrifice and love that unleashed the last torrent of my tears. Previously I had cried two times over the horrors and Ma’s love as her strength, and it was this final moment, this sharing of his “Strong,” that let loose the happy tears.

It should go without saying but Larson gives an exceptionally powerful performance. After 2013’s stupendous Short Term 12, I knew this actress was destined for great things, especially the way she can zero in on a character and inhabit them fully. With Ma (she’s never given any other name) Larson is able to convey a multitude of emotions, many of which she has to hide from her son out of loving deference. He can’t know just how scared and exhausted she is, though these emotions do take over at time. Larson is tremendous as she exhumes maternal might as she does everything in her power to save the two of them. Early on, she’s the character we empathize with the most because she’s had her world taken from her and hoping to return. She’s so resourceful, from the way she’s able to answer her son’s questions about the world, to the way she’s able to practice and drill their escape plan to a child with no concept of “outside,” this is a powerful woman driven by the instinct to endure. When Larson’s façade breaks down with Jack, that’s when the movie started stabbing me like daggers. In the second half, her character has a long road to go to recovery, if that’s even an appropriate word, and Larson gives sensitive and empathetic consideration to every exhausted development. She is easily going to be the one to beat this year for the Best Actress Oscar.

Paired with Larson is the remarkably natural child actor Jacob Tremblay, and his performance is worthy of awards consideration itself. At first his worldview is precocious because of how unique it is, which makes him more a figure of fascination than tragedy. He’s bright and active with the world around him, turning household items into useful toys and emotional attachments. The film uses parts of his narration to give better insight into just how he’s processing the world he knows versus the world as it exists. These bouts of narration never come across as cloying. As the movie continues, he learns more about how his preconceptions of the world are wrong, but he’s more intrigued than frightened. During the escape plan, when Jack gets to see the outside world for the first time, it’s a transcendent emotional moment. His guarded behavior around others is necessary as Jack builds positive associations with men who are not Old Nick. Tremblay is utterly magnificent; there is no hint of artifice to his performance, which is especially rewarding considering his is a role that could have been suffocated with eccentricities and tics. You feel like you’re watching a child grow before you through supportive nurturing.

Within the first twenty minutes of watching Room I already knew this was one of the best films of 2015. It just connects so vividly and succinctly, effortlessly powerful and yet skillfully avoiding sensationalism and exploitation while telling an entertaining survival story that still resonates with emotional truth. The performances from mother and son are outstanding and Larson and Tremblay form a heroic duo that take hold of your heart. It doesn’t mitigate the darkness or the cruel realities of its premise but Room also doesn’t dwell in the darkness, castigating its characters as hapless victims forever broken from their incalculable suffering. They are resourceful and resilient and while their trauma will not be forgotten it is not the one defining moment of their burgeoning lives. It may sound maudlin but it is the power of love that resonates the longest with Room. That love at first is about protecting the innocent, and then it transforms into healing and acceptance. I hope everybody gets a chance to see Room, a remarkable film with two remarkable performances and plenty to say about the humanizing benefit of love.

Nate’s Grade: A