Izzy Santos' new job as Rocky Harbor's head detective is off to a rocky start when her Aunt Maggie is struck by a car and is laid up with a broken leg. On that same day, the wife of Officer Gabe Fox is in a coma after falling off a cliff. To top it off, Rocky Harbor has another murder for her to solve—a body with missing hands.

Before Izzy has a chance to process the facts of the murder, a second handless body is found—a teenage girl. When the body of a high school Spanish teacher is discovered with a missing hand, the small coastal community erupts in fear and growing anger.

Kylie, Gabe's teenage daughter, seems to have a motive for all the killings. But something just isn't adding up for Izzy as she scrambles to find the killer before they strike again.