I saw this movie as a child. I remember that a young adult or teenage girl is looking for a ride. A man in a suit offers to share a cab. She hesitates, but he shows her his wedding ring and she gets in. Later they end up in a hotel room, I think he is in a bathrobe. He outs his hand on her shoulder and makes a move on her, so she stabs him in (I think) the eye, and leaves the room.