Los Angeles is living in fear of the Southside Slayer, but the police realize that the killer isn't one man, but four people committing murder at the same time.

When dozens of women are killed around the city of Baton Rouge, La., officers must determine if there is more than one killer.

DNA connects a man to seven victims and the killer is sitting behind bars in Baton Rouge, La., but the murders continue, and investigators must act fast.

When an Army vet is found dead, it looks like a tragic suicide, but police uncover a sprawling cover-up and two grannies whose dueling stories collide.

A veteran cop falls for a beloved grandma until a home cooked meal sends them both racing to the hospital, and her sordid past is brought under scrutiny.

A fire department captain vanishes on a fishing trip; nearly two years later, a tip uncovers a story of manipulation and a grandmother's secrets.

After finding woman strangled and posed in a gruesome way, the police find more victims which sets them on a path to find the killer before he strikes again.

When a police officer discovers a dead body in a taxi, detectives rely on surveillance footage to piece together the mystery of who committed the murder.

A shocking murder leads to questions about a young woman's relationship with her boss, along with her possible multiple personalities.

A woman faces major decisions when her husband, who is a retired corrections officer, is on life support because of a mysterious illness.

A man's vicious murder at his home leads to questions about an ill-fated love triangle and the intentions of the woman that's in the center of the crime.

The mysterious death of a millionaire businessman leads authorities to investigate the case for years, which leads to suspicions of people close to him.

After a woman sees her former boyfriend's shooting, she struggles recalling what happened, raising questions about suicide, stalking and split personalities.

When a family experiences several murders within weeks, investigators wonder if they are being targeted, or if someone related to them committed the crimes.

When a body encased in concrete is discovered, it quickly leads to questions about a former sheriff's deputy and her boyfriend's connection to law enforcement.

When a community searches for a missing business woman, police uncover a dispute with a greedy relative, who they hope can help lead them to a killer.