Watch Black Widow Murders

A voice from beyond the grave helps investigators solve a crime after a Sunday School teacher loses two husbands in a row under suspicious circumstances.

After a smail-town store owner is murdered, detectives work to unravel his ex-wife's tangled web of lies - and capture a devious killer bigamist with a long list of lovers and husbands behind her.

After a decade of rumors, an elderly woman in rural Louisiana falls under suspicion when a man is found dead in her apartment, and local authorities discover an extensive history of tragedies, all surrounding the friendly church lady.

After a fire dispatcher is found dead in a raging house fire, police discover that it's not the first time his wife has become a widow, and investigators get a confession in an unexpected location.

Detectives immediately know they are in for an investigation like no other they have seen when they inspect a murder scene staged to look like a drug deal gone wrong, but their hunt for the killer would reveal lies, voodoo and multiple victims.

In the episode, a sweet and charming Canadian woman finds love on the internet and leaves an international trail of lovers falling victim to mysterious illnesses in her wake.