Watch Grave Mysteries

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

Professor Tiffany Maher is a faculty favorite, and it's hard to believe she could have any enemies; then, the professor is murdered, leading investigators to discover her secret online life.

Indle King hasn't seen his wife, Anastasia, since she abandoned him at the Moscow airport; after returning to Seattle alone, King meets with detectives tasked with unraveling the series of events that led to his mail-order-bride's disappearance.

While dating an older man, 18-year old Brittany Clardy's life veers from that of a model student to a lost soul, then she disappears, and her family panics; now, investigators must unravel her complicated life filled with secrets and regret.

Ty Underwood leaves her insular hometown to start fresh, vowing to be forthright with potential suitors about being transgender; her shocking murder exposes chats with anonymous men on a phone app.

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.