Good one based on a novel by prolific mystery writer Francis Durbridge. Along with stand alones he wrote the successful Paul Temple series that was also a radio show.
Artist Tim Forrester (Robert Beatty) is losing model Jill Stewart. She’s going to marry the wealthy stuffed shirt Henry Carmichael. He wishes her well and they part friends. Tim’s brother Dave is a pilot. He arrives and tells Tim the bad news that their brother Lewis was killed in a car crash in Italy. He had a girl in the car with him.
Lewis was an investigative reporter. His newspaper’s Fenby is going with Dave to Milan to make funeral arrangements. Both bodies were burned beyond recognition and the case is closed. Scotland Yard’s Inspector Colby thinks it’s murder. Lewis was looking into a ring of diamond smugglers. On the day of his death he sent a postcard to someone with the picture of a woman’s hand holding a bottle of Chianti.
Colby asks Tim if he knows anything about it. He doesn’t. Tim goes to a hotel to see potential client John Smith. He wants a picture of his daughter painted. She uses the name Allison Ford. She was the girl in the car with Lewis. Smith gives Tim a favorite pink dress of hers along with a photo. Jill comes back to Tim’s studio pick up some things but in a rush left a parcel behind.
While Tim is out the very much alive Allison (Terry Moore) goes into the unlocked apartment and defaces her portrait and steals the photograph. She just makes it out as Tim and Dave return. They discover the body of Jill. She’s been strangled and is wearing the pink dress.
Colby insists on opening Jill’s parcel. Inside is a bottle of Chianti. On the floor is a charm from a bracelet. Colby hints that he thinks Tim may have killed Jill. Anything from here on out would be a spoiler so I’ll say no more. This is definitely worth seeing.