This Italian murder mystery is set against the backdrop of an exclusive girl's school. A much-hated teacher is killed, and everyone had ample reason to commit the deed. Among the suspects are two students who'd been plotting to poison the teacher for humiliating one of their classmates. Naturally, these kids aren't the guilty parties, as inspector Nino Benzoni proves in the action-packed final reel. The film was apparently designed as a group "screen test" for several promising young starlets, none of whom went on to bigger things. The title, incidentally, translates as The Serpent's Fang. ~ Hal Erickson, Rovi