Frank Rodriguez is a U.S. Navy veteran with not many enemies, after he dies under mysterious circumstances is leaves investigators with the challenge of working out how he died and who would want him dead.

Lisa Knoefel is stabbed to death and her teenage foster daughter, Sabrina Zunich, admits to killing her, but the case grows becomes more complicated after Lisa's husband, Kevin, is also implicated in her death.

When Eric Somuah is discovered shot to death in his bed, a detective refuses to give up on the investigation until he finds the killer.

Chiquita Tate's promising career came to a violent end after she was murdered, and police are challenged since she came into contact with many miscreants.

Marc Despain is discovered shot to death on the kitchen floor of his Arkansas home and the police speculate as to whether money is the motive for his death.

Bonnie Harkey goes missing in Texas and investigators discover a twisted tale of greed and murder.

Lynn Friend was making plans to marry her fiancé but after she vanishes into thin air, investigators go to some unexpected lengths to get to the bottom of her mysterious disappearance.

After a doctor collapses at home and is rushed to the emergency room, a blood test reveals she has been the victim of cyanide poisoning.

A doctor is left fighting for his life after being poisoned, and police discover more than one suspect whilst looking into the women in the victim's life.

Jennifer Ramsaran goes missing and detectives believe that she could have been harmed by somebody she met online.

When a man and his young son are shot in Miami, the man's widow, Cindy Carballo, murders her husband's business partner.

When a college freshman is beaten to death, identifying the victim ends up being more difficult than finding the killer.

Police find out a shocking connection between a couple of victims and they attempt to connect the dots to see if they have a serial killer on the loose.

When a strange murder case goes cold, investigators receice a DNA hit but they are unable to work out the link between the victim and her suspected killer.