Spontaneous is a movie that grabbed my attention immediately, made me laugh quickly, and then made me fall in love over the course of its explosive 100 minutes. The more I think back about this bizarre little movie, based on the YA novel by Aaron Starmer, the more affection I have for it and its messy accomplishments. Writer/director Brian Duffield has been one of the most exciting screenwriters for years, penning highly inventive stories that have a distinct, vivacious comedic voice that leaps off the page and smacks you across the face with how good it is, and then you ask for more (check out The Babysitter for the closest representation of what a Duffield screenplay delivers; skip the sequel though). This is Duffield’s debut as a director and I feel like he’s a natural fit for the quirky, blood-soaked material. Spontaneous is a dark comedy that can also make you feel something because it doesn’t simply treat its characters as disposable punchlines.

So the senior class of Covington High School has a serious problem. They’re spontaneously exploding. Nobody knows why, nobody knows who will be next, and even after a government quarantine, the answers aren’t any clearer. Mara (Katherine Langford) just wants to live to grow into a badass older lady who lives on the beach with her best friend Tess (Hayley Law). Her dreams of a life after graduation might never come true. Dylan (Charlie Plummer) introduces himself to Mara and they begin a tender courtship, falling in love during a precarious time where either of them could explode and soak the other in gore and viscera. Can these two crazy kids make it and grow up when their own bodies might betray their fleeting happiness?

Almost instantaneously I was drawn into the romance between Mara and Dylan, and I enjoyed deeply how each helps to shape the other, finding a sincere connection in the most extreme and unexpected of circumstances. Their budding romance dances with tragedy and dread as we worry over the fate of our lovers; surely, with this horrific premise, they won’t end happily ever after, or could they? Every time another student exploded, I winced. I laughed a few times, I’ll admit, because the context can become darkly hilarious and absurd, but it’s also a natural human reflex to relieve tension. Each one of these kids is a potential suicide bomber and they don’t know it. It’s sudden and something that you, even as a viewer, will never get used to. What you will do is start to dread who is next and whether that explosion sound was someone you liked. With an omnipresence of tragedy, it pushes the characters to make the most of their potentially short lives and that brings a greater significance to their next steps, the little attempts to “feel like an adult,” to reach for their desires, and to declare who they are while they are still standing to do so. It takes the coming-of-age setup and deftly dials up the emotional stakes.

Make no mistake though, Spontaneous is an uproariously funny movie. We’re primarily seeing the world from the perspective of Mara and her narration and occasional fourth-wall breaks. There are some fun asides where other characters take over narration duties, but this is chiefly her movie and she’s delightfully odd, prickly, and worthy of our attention. Duffield’s screenplay is brimming with wit and the conversational banter flows with such a confident cadence, all while not being overly mellifluous and self-satisfied. I adored just spending time with the characters because I was anticipating what they would say and do next. The social satire is present but not as substantial as I would have thought. The film trades in familiar stereotypes we’ve come to associate with high school movies, yet it can take some interesting detours, like when the football team cheers in support about their fellow player for coming out as gay. This is a high school movie mixed with a horror movie, where a big party to cut loose could become the latest crime scene. Most of the adults are simply scared and don’t know what to do, and that helpless vulnerability extends outward and keeps going. Just because you may be older doesn’t mean you know what you’re doing. I cackled plenty from the physical humor, slapstick gross-out gags, but when Duffield wanted to be serious, you better believe I shut my trap and pulled up the blanket.

I think it’s worth acknowledging, and I don’t consider this a real spoiler, that the cause of the spontaneous combustion is never resolved. There is no explanation, and if that’s a deal-breaker for you then I think you’re prioritizing the wrong parts of what Spontaneous is offering. It doesn’t really matter why it’s happening because the movie isn’t a scientific mystery. As much as it might seem bizarre to declare, this is far more than the “kids blown into bloody bits” movie. It’s not about what is happening per se but how it emotionally affects the characters. The unknown bodily explosions could serve as a gory metaphor for modern-day threats of school shooters, terrorism, or even our current pandemic (pick your metaphor, anything really works). Students don’t know who will be next, when their time will be up, and an anxious pall hangs over their day-to-day lives as they trudge onward trying to regain a sense of normalcy during a troubling and uncertain time of numbing trauma. That’s really the core of the movie, the response to inexplicable trauma. Some characters maintain a blasé, nihilistic attitude, questioning whether their minute remaining time has value. Others look at the random threat of exploding as a motivator to overcome the obstacles that kept them from achieving their goals, ignoring social hang-ups and personal misgivings. It’s the proverbial kick that Dylan needs to finally talk to the girl he’s been crushing on. He elects to live with his remaining time on this planet, no matter how brief, and elects to be happy, which is about one of the bravest things a person can do. That’s why the combustible student body doesn’t need an explanation, and to be fair what possible explanation would ever have been truly satisfying (“Oh, we all just ate too many carbs. Huh.”)?

If she hadn’t already established herself from Netflix’s somber soap 13 Reasons Why, this would have been a star-making role for Langford (Knives Out). She’s captivating from her first moment onscreen when she discusses the mundane details of her day at school right before the girl in front of her explodes. Her sardonic and spiky attitude permeates the movie and gives the film an energetic jolt, amplified by Duffield’s stylish flourishes that reminded me at points of Edgar Wright with how playful and involved the visual transitions could get. Our leading lady is a force of nature, and after enough time, you can understand why Tess wants to be her bestie, why Dylan would fall in love with her, and why other students would be afraid of Mara. There are moments where Langford can be silly and diverting, like dressing in mourning over the 2016 election, and others where she feels like she’s harnessing the totality of youthful feminine rage (I loved a late declarative statement directed at our current president) to be a symbol. The “same old” just isn’t going to cut it when the stakes are this high. Langford isn’t just the too-cool gal spitting pithy insults from a safe distance. There’s some heavy-duty existential drama here that she carries while through the prism of her eccentric teenager’s attitude. Her romance with Plummer (All the Money in the World) is sweet and affecting and feels entirely genuine.

Sticky, sweet, and wickedly funny, Spontaneous is obsessed with death, the uncertainty of knowing when your time is up, and yet I came away feeling ultimately uplifted and moved. There are some jolting moments, both funny and heart-breaking, and Duffield wants you to take the time to feel the full experience of being young and angry and hopeful and anxious and in love and feeling weird. In a disastrous year of worldwide calamities, Spontaneous is a bright spot, and given the bloody premise, that should tell you everything you need to know about the year 2020. This is a delightful, heartfelt, and surprisingly mature teen drama that also happens to have people bursting like balloons. Duffield even touches upon the profound at points, which is hard to do with any filmmaker, let alone one playing with these crazy genre elements. Spontaneous is a coming-of-age drama with equal parts ache and warmth, gallows humor and personal insight. Find this movie, devote 100 minutes of your time, and wear a poncho if necessary.

Nate’s Grade: A