Jordan Sanders, a take-no-prisoners tech mogul, wakes up one morning in the body of her 13-year-old self right before a do-or-die presentation. Her beleaguered assistant April is the only one in on the secret that her daily tormentor is now trapped in an awkward tween body, just as everything is on the line.

It's 1991, and LAPD Homicide Detective Dawn Reeve is assigned to a new case: the gruesome murder of a foster home mother that has left even the most hardened detectives shaken. Navigating a tumultuous time in Los Angeles, with a city on the razor's edge of chaos, Dawn is determined to stop the killer. But as she draws closer to the truth, something ominous and malevolent grips her and her family…