Death Knocks Twice, ), is a 1969 Italian-West German detective film directed by Harald Philipp and starring Dean Reed, Fabio Testi and Adolfo Celi. It also starred Anita Ekberg, Helene Chanel and Femi Benussi. It was also released as Blonde Bait for the Murderer and The Blonde Connection.

Plot

A wealthy businessman, Francesco Villaverde, who suffers from mental issues, strangles Mrs. Ferretti (Anita Ekberg), the beautiful wife of another businessman, on a beach after they make love. The murder is witnessed by two criminals who then blackmail Francesco's wife to get some property they desire from her. Two private eyes try to prove that Francesco murdered the woman on the beach, so they use a young blonde (the daughter of one of the detectives) to pose as bait for Francesco to kill.

Cast