The Independent by Clarisse Loughrey

Cuckoo isn’t a horror movie for people who dislike unanswered questions, since Singer, who also wrote its script, is far more interested in emotional logic than the literal kind.

The Irish Times by Tara Brady

The gunplay of the final act isn’t as much fun as the properly creepy build-up. No matter. This self-aware German-Hollywood coproduction atones with plenty of Teutonsploitation humour.

Los Angeles Times by Katie Walsh

One may not entirely understand exactly what is going on in “Cuckoo,” but there’s no denying how it makes you feel: rattled, unsettled, psychically imprinted with unforgettable images and sensations, which is how every good piece of horror should leave its audience.

The Daily Beast by Nick Schager

A bewildering and gripping saga about reproduction, identity, and family that, at its finest, taps into a legitimately demented vein.

Slashfilm by BJ Colangelo

Cuckoo is equal parts head-scratcher and mind-blower but so ridiculously audacious that it's impossible not to obsess over.

Collider by Chase Hutchinson

Cuckoo will most certainly not be for everyone, but for those looking for a horror film that draws you in just as it defies any of your expectations for where it is supposed to go, it’s hard to think of a trip this year you’ll find that is as bold and bonkers as this one.

Paste Magazine by Brianna Zigler

Cuckoo is a twisty, giallo-inspired, semi-body horror mystery that double acts as an impressive lead showcase proving that Schafer is more than just an “it girl.”

Washington Post by Jen Yamato

An American teen encounters peculiar horrors at a remote German resort in Tilman Singer’s “Cuckoo,” a kooky sci-fi genre hybrid that crackles with offbeat turns and creature scares as it unfolds against a backdrop of deceptively serene forests and cheeky Euro-kitsch.

Chicago Sun-Times by Richard Roeper

Much of what transpires in “Cuckoo” depends on your willingness to just go with it, and your forgiveness for a couple of loose ends that remain untied throughout. The fun here is enjoying the screen-popping performances by Schafer and Dan Stevens as a snarling villain, not to mention the quality Jump Scares and the overall creepy vibe.

The Film Stage by Rory O'Connor

As Cuckoo moves to its final third the fragments of its ideas never quite form a convincing whole. Luckily, Schafer is there to guide us through.