Episode 1
A nursing student is found brutally murdered in a dilapidated part of Philadelphia. Detectives get on the trail of a serial killer who is targeting women.
Episode 2
A birthday ends in tragedy when a beloved family is found brutally murdered. Detectives are left in the dark until a chance encounter changes everything.
Episode 3
An aspiring artist is found dead in an abandoned house. Her family worry the case will never be solved, but a break in DNA technology gives detectives a lead.
Episode 4
The murder of a family provides detectives with a chilling link to another case. They must work fast to make an arrest before the killer strikes again.
Episode 5
When an exotic dancer is found dead at the bottom of a 12-storey bridge, detectives must determine if it's a suicide or the work of a sinister character.
Episode 6
A skeleton is discovered on the edge of a high school football field. It takes a forensic sculptor and tireless detective work to finally bring the killer to justice.
Episode 7
A police officer is shot dead in a suspected set-up. Detectives take drastic measures to get answers from a tight-lipped local community.
Episode 8
More than two decades after two women are found strangled in Philadelphia, there's renewed hope that DNA breakthroughs could unearth the brutal killer.
Episode 9
In 2005, a pregnant mother goes missing in Philadelphia. Detectives stumble on a love-triangle that may explain the secrets behind her death.
Episode 10
A wild party ends in terror as a young mother's cries for help go unnoticed. When detectives retrace her final steps, they find a trap with no way out.