"The Case of the Scorpion's Tail" has all the elements that are necessary in order to make an effective giallo movie. The story is standard giallo. When a man dies in a plane crash his wife (Ida Galli) collects a $1 million life insurance policy. The widow heads to Greece for the payout but a series of gruesome murders follow her. There are plenty of suspects, including a tenacious investigator (George Hilton) from the insurance agency and the widow's lover. Director Martino keeps the story moving at a fast pace while the viewer tries to guess the identity of the killer. Anita Strindberg (also memorable in "Your Vice Is a Locked Room and Only I Have the Key" and "Who Saw Her Die?") is a stunning-looking heroine. It's one of Martino's best films.

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