Exploring unbelievable true stories of suspicious deaths by retracing the investigations from start to finish, dissecting the red flags, undeniable evidence, and strange behaviour that put the tragedies in question.
When a late night party in the home of a basketball player turns deadly, a web of lies leads detectives on a rocky road to the truth. (S4, ep 1)
Two unusual accidents that are two decades apart leave a family suspicious of a father who appears to benefit from tragedy. (S4, ep 2)
A mother is killed in a hunting accident while out with her fiancé, as police investigate, they unravel a tangle of romantic relationships and money. (S4, ep 3)
Found with a gunshot wound to her chest, a woman's family seeks justice for 20 years after the would-be murder suspect proclaims suicide. (S4, ep 4)
Found with a gunshot wound to her chest, a woman's family seeks justice for 20 years after the would-be murder suspect proclaims suicide. (S4, ep 5)
A tragic car accident leaves a mother dead and her daughter in critical condition. Detectives are led down a winding path involving a government conspiracy. (S4, ep 6)
When a struggling Hollywood actress and famed music producer engage in a late-night rendezvous, the evening takes a deadly turn. (S4, ep 7)
A married politician's day with his mistress comes to a tragic end when she's shot to death in her driveway. (S4, ep 8)
When a 41-year-old maths teacher suddenly dies at home without an official cause of death, investigators find his new wife holds the clues. (S4, ep 9)
When a famed musician's ex-wife drowns in her new boyfriend's pool, her family fights for justice. Was this a drunken accident or did he do her in? (S4, ep 10)
Two deaf friends embark on a dream trip in northern California wilderness. When one goes missing, detectives investigate their treacherous journey. (S4, ep 11)
A couple is involved in a bizarre car accident and only one of them survives.Detectives start questioning if this really was a freak accident. (S4, ep 12)
A millionaire is found dead in his mansion. Initial signs point to a natural cause of death but investigators uncover a toxicological bombshell. (S4, ep 13)
A troubled lawyer goes to sleep while her husband takes their daughters out. When she doesn't wake up, her family is convinced it wasn't an incident. (S4, ep 14)
A husband shoots his wife while cleaning a gun. He claims it was an accident but investigators take a closer look at the case. (S4, ep 15)
A mother is found dead at work from an apparent suicide. Revelations of infidelity and drug use lead investigators on a long search for the truth. (S4, ep 16)
A husband comes home to find his wife dead. Her cause of death appears to be from a trip and fall, but investigators discover new truths. (S4, ep 17)
After a mother is found unconscious following a facelift, her death appears to be an accident but investigators grow suspicious of her doctor husband. (S4, ep 18)
On the edge of divorce, a couple's argument turns deadly. The husband claims he killed his wife in self-defence, but a look into his past holds a deadly secret. (S4, ep 19)
A husband dies in a car crash, which appears to be an accident. But, when his widow seems more relieved than hurt, detectives uncover a shocking truth. (S4, ep 20)