Sometimes, casting the right person in a role can make or break a movie. Consider “Cuckoo,” the buzzy horror film now in theaters nationwide, which turns a formulaic premise into an edgy and provocative thriller thanks to the presence of lead player Hunter Schafer, the breakout trans co-star of HBO’s acclaimed “Euphoria.” Her role might have been played by any young actress of appropriate age and sufficient talent, but carries a much more palpable weight both because of what she brings to it and because of how her director – sophomore German feature-filmmaker Tilman Singer (“Luz”) – chooses to present her.
That role is Gretchen (Schafer), an American teen raised by her recently deceased mother and now forced to move in with her father (Marton Csokas) and his new family just as they relocate to a remote town in the Bavarian Alps, where the owner of a resort he designed wants him to work on an expansion.
Already feeling like a stranger within the household – which, besides dad’s second wife (Jessica Henwick), includes a perplexingly mute young stepsister, Alma (Mila Lieu), who has begun to experience unexplained seizure-like episodes since Gretchen’s arrival – and still grieving the loss of her mom, she’s not thrilled about the added isolation of living in a remote and sleepy mountain town.
Making matters worse are her misgivings about the resort and the community that surrounds it, not to mention the vaguely threatening vibe she seems to sense behind the benevolent manner of Herr König (Dan Stevens), her dad’s overly polite and aggressively gracious boss.