A college professor teaching "Whodunnit" fiction gets involved in the police investigation of the theft of a mega dollar research plant, the death of a student, disappearance of another and an alleged suicide.
College professor, Amy (Jill Wagner) is working on a play, when the main actress' life is threatened, so she works with Detective Burke (Kristoffer Polaha) and try to figure out who is lying and keeping secrets.
When a guest at the college book festival is killed, Amy and Travis clash after he arrests an unlikely person for murder. Amy must fight to prove he's got the wrong person behind bars.
Amy, professor in "Who Dunnit" and speaker at Teachable Talk in Seattle, meets her ex there. She also meets the owner of a crime solving software, who's later found dead. Amy and her detective friend start investigating.
A young writer's research prompts the police to revisit a famous murder case that convicted Amy's colleague at Elmstead, so Travis and Amy get a second chance at clearing the professor's name.
An escaped serial killer and an attempt on Travis's life make their most dangerous case yet as Amy and Travis team up with his FBI Agent ex to find the connection before it's too late.