The body of a young woman is found spinning inside the dryer in the laundry room of an upscale apartment building. When Castle and Beckett discover that the woman, in her 20s, worked as a Nanny in the building, their investigation leads them to a world of sex, lies and "playdates." Meanwhile, while writing the first novel to his "Nikki Heat" series, Castle delves into the thoughts and actions of Beckett, as she navigates the murder case while revealing more of her own mysteries.
Spoilers ahead. Coverage follows the scope labeled below.
Complete story — includes the ending
When a nanny is found bludgeoned to death and stuffed into an apartment building clothes dryer, it sets off a convoluted investigation into the hows and whys of her death. Castle, now a part of the detective team through an arrangement with the mayor, lends his skills of envisioning scenarios and attention to detail to the investigation. This reveals that the victim and her best friend were sleeping with the fathers of their charges, but the truth behind the murder turns out to be more heartbreaking.