Grave Secrets Season 3 is yet to be announced by Investigation Discovery

One night, cellist Janine Sutphen fails to return from symphony practice, and her husband tells police there's more to his wife than anyone knows.

After teenager Marlisa Wells is stabbed to death, her friend says she was keeping a secret from her family, and investigators must determine whether the secret led to her brutal murder.

Wendy Kratzert's body is found in her van, which appears to have skidded off a mountain road, but investigators suspect foul play and retrace the victim's last movements.

After Kristine Fitzhugh is found dead at the bottom of her basement stairs, detectives soon begin investigating her accidental fall as a homicide and strive to locate the actual scene of her death.

While appearing to have it all, wife and mother Sandra Duyst struggles with crippling depression, and her death appears to have been a suicide, but a message from beyond the grave sends the investigation in an unexpected direction.

In Chandler, Ariz., detectives are shocked when it takes 10 weeks for anyone to report Jamie Laiaddee missing, then they uncover the missing woman's dark secrets and unravel the frightening details behind her mysterious disappearance.

Loretta Bowersock is dropped off at a mall for a day of shopping, but she is never seen again; struggling to come up with a suspect, investigators discover Bowersock has a shocking secret that may explain her disappearance.

In 1987, the lifeless, mutilated bodies of multiple women began appearing around Delaware. The horrific deaths were the work of the state's first serial killer. The hunt for him would lead investigators down a dark road, that no one would soon forget.

When 19-year-old Devon Guzman is found dead in the backseat of her car, it sends shockwaves through her grieving community. But detectives soon discover Devon's love life was a time bomb-- a web of jealousy and betrayal that seemed destined for disaster.

When Shauna Tiaffay is found brutally murdered, her husband George immediately becomes the prime suspect...but George has an ironclad alibi. The case goes cold, until a tip cracks the case, and a secret shatters the lives of this seemingly perfect family.