Making matters worse, Herr König’s German accent has an aura of ... It’s as effective as the guns the sinister men in this movie wave around in “Cuckoo”’s go-for-broke climax.

Before long, Cuckoo becomes a bizarre buddy-cop movie of sorts, with each scene resulting in a more ghastly injury for Gretchen, akin to Homer Simpson plummeting off a cliff and hitting every ...