Richard Castle is called in to help police after two murders look very similar to murders from his books.
Castle and Beckett work together to solve the hug of a nanny found dead spinning in the dryer of an upscale New York apartment building's laundry room.
The son of a once wealthy family is found dead in Central Park. As Castle and Beckett are working on the investigation his friends are trying to stop them. Castle isn't sure he can trust Martha to be left alone while he chaperones Alexis' class on a field trip to Washington DC.
The investigation behind a body found wrapped in a rug on the sidewalk leads Castle and Beckett deep inside the world of New York City politics. The partners discover a world of expensive escorts, arrogant tycoons, corrupt investigators, and the effects of betrayal.
Castle and Beckett investigate the hug of a women found frozen and tangled in steel bars at a construction site. The case leads them to looking into an old case and also has Beckett thinking about some memories from her past.
Castle and Beckett look into the Vudon religion when an immigrant is found tortured in a ritualistic killing. Meanwhile on the homefront Castle must deal with the possible homecoming of Alexis' mother, his first wife.
Beckett and Castle investigate numerous cases involving murders and home invasion jewel heists.
Castle delves into the search for the murderer of a long-underground radical bomber.
Castle goes on the search for the murderer when a bomber is killed.
Castle and Beckett investigate the hug of a plastic surgeon. Meanwhile, Alexis has her first prom and Castle snoops around Beckett's past and it's up for a surprise.