The Sundance vet, adapted from Christopher Barzak’s novel, wisely avoids a teen-whodunit in favor of a gritty, mood piece.
Joyfully stomping down the line between comedy and tragedy, the pitch-black "Frank" benefits from a nimble cast.
Is it a zombie drama on a small scale, framed by grief? Is it a satire of end-of-relationship dramas? The answer gets lost in the middle.