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.
The death of a young mother in an Alaskan lodge is initially ruled an accident, before a similar incident drives investigators to reopen the case. (S3, ep 1)
A pastor places a frantic call claiming his fiancé just shot herself - but as investigators look closer, a darker side to this happy relationship is revealed. (S3, ep 2)
A decade after one couple's romantic evening atop Rockefeller Lookout ends with the wife's tragic death, investigators uncover a web of lies. (S3, ep 3)
A Texas woman's apparent suicide devastates the family she leaves behind - but when an investigator dedicates years to the case, a sinister truth is discovered. (S3, ep 4)
Tragedy strikes when a beloved volleyball coach dies in a car accident - but as investigators look closer, clues reveal a horrifying series of events. (S3, ep 5)
An apparent victim of an accidental drowning washes ashore on idyllic Cocoa Beach, but investigators uncover a murky truth. (S3, ep 6)
In the early hours after Valentine's Day, a man is found dead after an apparent drug overdose - but a jail informant abruptly changes the case. (S3, ep 7)
An elderly woman is found dead in her home after an apparent fall down her stairs, but with the help of an informant, police reveal the truth. (S3, ep 8)
Investigators suspect foul play when they discover a body, but evidence only deepens the dark enigma surrounding a well-respected family man. (S3, ep 9)
When a teenage girl dies from an apparent suicide, investigators suspect that there's more to the scene than meets the eye - with evidence revealing a dark truth. (S3, ep 10)
Investigators are baffled by the accidental shooting of a young mother, but her determined daughter's decades-long quest reveals a dark story. (S3, ep 11)
All signs point to homicide when a body is discovered in a Boston suburb, but the clues send investigators on a journey to an unbelievable truth. (S3, ep 12)
A once prominent heart surgeon is found dead in his bed after suffering from mysterious health conditions. (S3, ep 13)
A scenic drive up the coast of California turns deadly when a young woman falls from an overlook in Big Sur - but is there a darker side to the story? (S3, ep 14)
When a woman is found dead at the bottom of her staircase, investigators focus on her husband - but family and friends rally behind him. (S3, ep 15)
When a successful family man is discovered in the rubble of a deadly explosion, investigators desperately try to determine the cause and the motive. (S3, ep 16)
A young woman is hit by a freight train - but when investigators push to reopen the case, the buried truth finally comes to light. (S3, ep 17)
A police officer reports that he found his wife dead at home, but when the scene says suicide and the family disagrees, the truth is revealed. (S3, ep 18)
A local celebrity is fatally shot in his bedroom, but while debt and depression point to suicide, forensic evidence hints at something more sinister. (S3, ep 19)
A welfare check spirals into a sinister tableau of death, when sheriffs make a forceful entry into a home only to discover a horrific crime scene. (S3, ep 20)