Who Killed Kate is a high paced action thriller, following the dual investigations of an unpredictable serial killer and mystery of a person disappearance.An ex-undercover detective Kate spent five years in one of the toughest women prison in California based in Chowchilla. The name of the city represent the dangerousness of the prison facility as it can be translate into the word 'Murderers' due to the wild nature of the countryside and its past inhabitants.
Eventually, Kate is released but instead of starting a new decent life she is thrown back into chaotic world full of crime, murders and betrayal. Disengaging herself from both underworld world that she used to be part of and law enforcement that she was ruled by, Kate starts a dangerous journey to uncover the truth behind her sister disappearance.
Along the way, she encounters a young, vibrant and intelligent new San Jose Homicide detective Gina Selby who recently returned back to work following the murder of her younger brother by the hand of serial killer. Burden by the quilt Gina befriends Kate and together they join forces in order to solve both cases as clues indicate that answer to one mystery can be linked to the answer of the other. At the end, Kate faces the biggest test of her life where she needs to choose between two sides.
