What Keeps You Alive

For its first half hour, give or take, What Keeps You Alive is a fakeout. Writer-director Colin Minihan studiously tries to make his movie pass the duck test: It looks like a slow burn thriller, moves like a slow burn thriller and withholds plot like a slow burn thriller. There’s foreshadowing of a sort, portents of amorphous danger, but mostly the film plays coy and the audience reluctantly relaxes.
Then abruptly, viciously, unceremoniously, Jackie (Hannah Emily Anderson) shoves her wife Jules (Brittany Allen) off a cliff’s edge in the middle of remote backwoods nowhere and leaves her for dead. You’ll hear a figurative needle scratch at this jolting beat. Suddenly, What Keeps You Alive becomes an entirely different film, no longer posing the frankly trite genre question of “how well do you know your spouse,” instead coldly fixating on Jules’ fight to survive alone in the forest while the woman she loves stalks her like an animal. Marital bliss gives way to bloody Darwinism. May the fittest win, and as we wait on the outcome of that contest, may Jules do her damndest to stay off of Jackie’s radar.
Jackie, unlike What Keeps You Alive’s opening chapter, doesn’t screw around. Sure, she likes playing the long con: She takes her time getting to the fun part, the “fun part” being the part where she betrays Jules to torment and death for her own entertainment. But Jackie is a practiced murderer and an even more accomplished actress. Post-shove, she returns to her family cabin, where hours ago she and Jules had been enjoying a romantic weekend getaway to celebrate their one year wedding anniversary. She looks in the mirror. She rehearses her routine for calling in Jules’ “accidental” death to the authorities. Then she goes back to the scene of the crime and finds Jules’ body has vanished. The chase begins.
What Keeps You Alive knows what keeps us on the book. Minihan has a strong sense of how much buildup is enough, teasing out mystery over Jackie’s change in mood once the couple arrives at the cabin. She broods, grows introverted and introspective, and starts telling Jules old, chilling tales about her childhood hunting expeditions with her dad. Jules has never heard these before, and hearing them raises red flags for the audience. Too bad Jules is color blind. Maybe she sees the warning in Jackie’s nostalgic recollections of her first kill. Maybe she doesn’t. Minihan is careful not to show his hand, so when Jules turns to see Jackie charging at her, violence in her eyes, the shock is as much hers as it is the viewer’s.