When a bloodstained car connected to two missing girls (Nicole Gilbert and her best friend Kara Palmer) is found abandoned off a local interstate along an isolated lumber town, Jane and his team are called in to assist.
Upon arrival, Jane locates Katie stabbed to death under the car, but Nicole is no where to be found.
After searching for her, Nicole turns up at a gas station, covered in blood and holding the murder weapon but has no recollection of what happened.
Could she have killed her best friend? Or is her future husband, who had made a pass at Katie, the killer? Jane, convinced that Nicole is innocent and her memory is just blocked, engineers a situation in which Nicole must relive the terrifying evening. She remembers something that the team misinterprets...and goes off looking in the wrong direction.
However, as Nicole's memories return, she helps Jane identify the killer, and Lisbon finds herself unintentionally facing him as well, alone.