The line between TV movie and giallo is always so close.
While on a honeymoon with her husband Ernesto in Spain, Sandra (Janet Leigh) wakes up one morning to discover that he’s gone. When she reports it to the police, Ernesto comes back, except that he’s not the same man. Then, his attorney (Eric Braeden, Victor from The Young and the Restless) and sister (Barbara Steele!) claim that nothing is wrong and that perhaps Sandra is deranged.
This has to be a giallo, because the cops are just the worst at their jobs.
This movie is based on the French play Piège pour un Homme Seul (Trap for a Single Man), which was based on the Indian movies Sesh Anka and Puthita Paravai, which were — following all this? — based on the British movie Chase A Crooked Shadow. And it wouldn’t be the last TV movie based on this story, as it was also turned into One of My Wives Is Missing and Vanishing Act.
You can watch this on YouTube.