C.I.D. - Season 1 Episode 598

An actress gets threatened by her ex-lover while she shooting a film. Her ex is thrown off of the set by her body guards. Later on that evening, he visits her again at her posh bungalow. They get into a heated argument, ending in the lover strangling her to death. When the CID reach the crime scene, they find out that the accused was once a famous film star of who had an affair with the victim. They find his address- but reach his residence to find him dead, too. Forensic reports reveal that he had died 2 hours before the woman. Who really killed her, then?