Alfred Hitchcock Presents S05E24 - Madame Mystery

Jimmy Dolan works for Goliath Studios. When star actress Betsy Blake drowns, he hopes to turn the publicity surrounding the murder into publicity for her last movie which was produced by Goliath Studios. When Betsy later turns up alive and seriously overweight, he drives her to the beach and drowns her. Later he is arrested. The police tell him he would kill his own mother if it served his purposes. He responds by asking how the police knew she was his real mother?