★★★★☆

94 min | PG | July 6, 2022 | Neon

Katia and Maurice Krafft spend twenty years chasing volcanoes and each other across the planet. They film everything, build a marriage on the edge of erupting craters, and never once pretend the danger is the problem. It is the whole point.

Katia and Maurice Krafft are French volcanologists who spend two decades chasing eruptions across the planet. They meet through a shared obsession with volcanoes. They marry. They build a life around standing as close to lava as a human body can survive. Sara Dosa assembles their own film and photographs into a portrait of two people who love each other and love the thing that will eventually kill them. The film is about the space where scientific curiosity and romantic devotion become indistinguishable.

The Kraffts appear only in their own archive footage, and they are magnetic on camera. Katia is precise and watchful. She measures gases and gathers rock samples while standing at the lip of an active crater. Maurice is the showman who once floats a rubber raft across a lake of sulfuric acid because he wants to know if it can be done. The footage shows two distinct temperaments locked into one shared mission, and the film lets their personalities emerge through the choices they make near the fire rather than through testimony about them.

Sara Dosa directs and co-writes with Shane Boris, Erin Casper, and Jocelyne Chaput, and the construction is the film’s central achievement. The Kraffts shot tens of hours of 16mm volcano footage, and the editing carves a love story out of material the couple recorded as science. Miranda July narrates in a hushed, essayistic register that treats the imagery as myth rather than report. The images themselves are extraordinary. Rivers of orange lava crawl through black rock, and the camera holds on them long enough that the scale becomes frightening.

This is a documentary about people who decide that a short life spent close to wonder beats a long life spent away from it. Dosa never pretends the ending is anything other than what it is. She builds the film so that the knowledge of how this story closes sharpens every frame of the Kraffts’ joy. The result honors the couple without sanding down the recklessness that defined them. It treats their obsession as both the reason they lived fully and the reason they did not live long.