Cuckoo

Cuckoo (2024) is a German-American horror thriller you can watch online on iFILM. Gretchen (Hunter Schafer) reluctantly joins her father and his new family at an Alpine resort in Bavaria — and almost immediately something feels wrong. The sounds don't belong to any bird she knows, and a woman in the trees keeps appearing where no one should be.

Director Tilman Singer, whose debut Luz announced him as a serious genre talent, keeps the dread slow and deliberate. Dan Stevens plays the resort's unnerving manager with exactly the right amount of charm-that-hides-something, while Jessica Henwick adds another layer of ambiguity to a mystery that refuses easy answers. Marton Csokas rounds out the adult cast.

This is a slow-burn horror that earns its ending rather than faking scares with jump cuts. Singer trusts his imagery. Stream Cuckoo (2024) online on iFILM.