Vincent Price channels his peerless talent for playing refined madmen into the character of Edward Lionheart, a proud London actor who goes dramatically bonkers when he fails to receive a coveted award. While riverside tramps foil Lionheart’s attempt to drown himself in the River Thames, the world believes he's met a watery end. The thespian uses this cover to exact grisly — and fitting -- revenge on the critics who ignored his genius.