In a small Spanish town two sisters start killing off young female tourists who they consider act and dress inappropriately against their moral code, but then the sister (Judy Geeson) of one of the missing girls get suspicious. This is a well contructed Spanish horror mixing murder, sexuality and suspense. The characters of the two sisters develop well including the relationship of one of them to a younger man. Judy Geeson's character is less well developed, but does deliver in the final climax.