When a coworker finds 67-year-old Karen Navarra dead in a bloody scene at her San Jose, California, home, the seemingly contradictory physical evidence baffles police. They must turn to digital evidence to solve this mysterious case.

When 26-year-old Erica Crippen Crosby disappears from her home in Mount Laurel, New Jersey, detectives must follow a digital trail to uncover the horrifying truth about what happened to her.