Carter Cervantez: A morning apartment fire in Texas sparks a murder investigation when a woman's body is found beaten and bound inside. (S31, ep 9) [S]
Willa Blanc: A retired, paranoid nuclear physicist is reported missing. As detectives race to find him, they wonder whether his fears were unfounded after all. (S31, ep 7) [S]
Rebecca Barker: The case seems clear when a Texas shop owner calls 911 with a harrowing confession, but detectives find a pattern that makes them think again. (S31, ep 8) [S]
Angel Sawyer: A local antique shop owner is murdered in a seemingly random home invasion, but North Carolina police discover there is more to the story. (S31, ep 6) [S]
Susan Gigliotti: After a beloved father is shot to death, police must work out if the crime was random violence or the result of an ongoing feud. (S31, ep 5) [S]
Angelina Hamrick: An Air Force recruiter is found dead in a ditch, leading to an investigation that culminates with a sting operation worthy of a spy drama. (S31, ep 4) [S]
Karen Coleman: It takes almost two decades for law enforcement to unravel a twisted murder plot that saw a local man horrifically murdered in Missouri. [S]
Patricia Brown: Investigators lock in robbery as a motive when a man is killed in North Carolina. But years later, a mysterious letter reveals an even more sinister motive. [S]
Barbara Burns: After the deceased body of a woman is found in an abandoned trailer, investigators uncover the dark truth of what happens when someone is pushed too far. [S]
Gloria Aiken: Just as a missing person's case is about to go cold, detectives make a horrifying discovery in a lake and begin to unravel the dark secrets in a relationship. [S]
Anne Plue Gates: Detectives comb through evidence following a brutal murder and eventually learn their prime suspect is closely tied to another open cold case. [S]
Sarah Mitchell: The high-profile case of a firebomb attack takes a shocking turn when detectives realise it was murder, orchestrated by a killer very close to home. [S]
Sheila Graham-Trott: Detectives follow the lead of a psychic's dream to the body of a missing nurse. The ensuing investigation unmasks a vengeful killer. [S]
Lisa Dolph Hostetter: When a young woman is shot on a remote highway in Michigan, the victim's past reveals a scandalous web with a vicious killer at the centre. [S]
Ciera Harp: Detectives investigating the death of an Atlanta-based rapper get a shock when they find horrifying evidence planted by the victim, seconds before his death. [S]
Daisy Gutierrez: The family of a missing young man are desperate for answers. A haunting text message sends detectives on a hunt for the truth about what happened. [S]
Lori Isenberg: The case of a missing boater takes a sinister turn when a local newspaper uncovers a shocking story, shaking up a peaceful lake town. [S]
Linda Dancer: An unsolved murder case resurfaces nearly a decade after leads run dry when an odd call from another state reveals the gruesome truth. [S]
Tucker Moore-Reed: When a family dispute results in a death, detectives trawl through a list of suspects and find the leading lady at the centre of the crime. [S]
Mary Ann Hughes: When a body is found near a trash pile, the investigation goes cold. 25 years later, detectives hope advances in technology will finally solve the case. [S]
Angel Brown: After a father's life is cut short in a car accident, Ohio investigators race against the clock to prevent a gruesome murder-for-hire plot. [S]
Brenda Delgado: An international manhunt ensues following the murder of a young dentist, revealing a trail of surveillance evidence and a deep conspiracy of lies. [S]
Pamela Moss: When a prominent businessman goes missing in Georgia, investigators race to find him and uncover a killer who will go to any lengths necessary to stay hidden. [S]
Clara Rector: As detectives try to figure out who stabbed a beloved Missouri resident, a pastor reveals a shocking confession from someone in his church. [S]
Rosalina Edmondson: As investigators search for the killer of a Navy yeoman in Washington, they make a chilling realisation: the victim may have seen his own death coming. [S]
Eunice Cristina Rodriguez: Texas police unravel a tale of greed, deception and manipulation when a woman discovers her brother's badly beaten body in his bathroom. [S]
Mary Jacoby: After a soon-to-be-wed scrapyard owner is killed, detectives must chase down every lead and conduct hundreds of interviews in order to find the truth. [S]
Karen Clowers: When the wife of a Vietnam veteran is found dead in a commuter lot, Missouri detectives work chase down the mastermind of a twisted murder plot. [S]
Crystal Gregoire: Investigators must determine whether they have a professional killer on their hands when a Tennessee man with rumoured mob connections is killed. [S]
Samantha Wohlford: When a young father in Texas vanishes without a trace and is later found murdered, mobile phone records and internet history reveal a cunning killer. [S]
Porsche Humphery: Friends and lovers all make the suspect list as detectives comb through the last days of a well-liked man shot dead in Milwaukee. [S]