Allison has a dream about a game show that can detect lies, and upon waking up she hears a buzzer in her head whenever someone tells her a lie. Allison's new talent is put to good use during a murder investigation.

Allison wakes up five years in the past after she and Devalos are gunned down by a strange man. In the past, Allison's dreams tell her that Devalos is going to convict an innocent man of murder. Allison must convince Devalos, who at this point has never met Allison, of her abilities and get him to change his mind about the murder conviction.