Woman in Red Silk Nightgown and Robe

Hello, I just want to know the name of the crime movie. I watched it on youtube several years ago. It was colored movie ( I’m not sure it was movie or TV series ), and I think it came from 80’s or 90’s. There was the scene where woman in red long silk nightgown and robe (the setting is in apartment or hotel room), was visited by someone, but when she open the door, she was shot instantly in the head, and after that the shooter was taken her necklace and abandoned her corpse. Thank you very much before for anyone can help.

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