La coda dello scorpione

The Case of the Scorpion's Tail
Italian theatrical release poster
Directed by	Sergio Martino
Produced by	Luciano Martino
Screenplay by	Ernesto Gastaldi Eduardo Manzanos Brochero Sauro Scavolini
Story by	Eduardo Manzanos Brochero
Starring	George Hilton, Anita Strindberg, Alberto de Mendoza, Ida Galli
Music by	Bruno Nicolai
Cinematography	Emilio Foriscot
Edited by	Eugenio Alabiso
Production company	Copercines, Cooperativa Cinematográfica Devon Film
Release date	16 August 1971
Running time	93 min.
Country	Italy Spain
Language	Italian
Box office	€19,571,993 (Spain)

The Case of the Scorpion's Tail (Italian: La coda dello scorpione / Tail of the Scorpion) is a 1971 Italian giallo film directed by Sergio Martino, produced by Luciano Martino and co-written by Ernesto Gastaldi and Eduardo Maria Brochero. It starred George Hilton, Anita Strindberg, Ida Galli and Janine Reynaud, and the music soundtrack was by Bruno Nicolai.

A widow named Lisa (Ida Galli) inherits a small fortune when her husband dies in a freak jet crash. However, before she can escape to a retreat with her secret lover, the widow is brutally slashed to death and the money stolen. Now an insurance investigator (George Hilton) and his journalist love interest must figure out exactly who is murdering anyone involved with the late widow, and why. A strange gold cufflink holds the key to the mystery.

AllMovie called it a "devilishly entertaining giallo thriller".