In the wake of a broken marriage, 28-year-old Samantha Lezark's struggle to find love again has a fatal ending. Now, investigators must follow her digital trail through different chat rooms to uncover her killer.

Ty Underwood leaves her hometown to start fresh, vowing to be up-front with suitors about being transgender. Her shocking murder exposes chats with anonymous men on a phone app that may reveal a killer, but not identities.

When 18-year-old Brittany Clardy starts dating an older man, her life veers from model student to lost soul. Then the teenager disappears, and her family panics. Now, investigators must unravel her complicated life filled with secrets and regret.

Indle King hasn't seen his wife Anastasia since she abandoned him at the Moscow airport. After returning to Seattle alone, Indle meets with the detectives tasked with unraveling his bride's mysterious disappearance.

Professor Tiffany Maher is a faculty favorite, and it's hard to believe that she could have any enemies. But when Tiffany is murdered, investigators discover a secret online life that may lead them to her killer.

After losing his girl to an older guy, a man launches into a bitter social media war with his ex and her new man. Soon after, he disappears, and detectives work to find out if this is a runaway case or something more serious.