"Casanova Killers" showcases the stories of men who seduce their victims with devilish good looks, irresistible charm, and all the right moves. From the outside, they look like every woman's fantasy come true. But behind the "Don Juan" façade is an ugly, cold-blooded killer.
Karen is found slain in her home and her boyfriend helps investigators find her killer — but investigators uncover his true motive. Greg is found dead and it appears to be a suicide. But the scene he left behind causes investigators to dig for answers.
Michael can barely keep it together as he calls police to his home. Upon arrival, officers find his wife dead. When firefighters extinguish flames from a burning house, they find the body of Jennifer. Her boyfriend collapses in tears when he learns.