Castle (2009)

S2E14 The Third Man

After returning from their vacation, a family is shocked to find a deceased man in their daughter's bed. Initially believing it to be the murder of a squatter, Castle and Beckett quickly delve into a complex web surrounding a multi-million dollar theft. Meanwhile, Castle struggles to hide the fact that he and Beckett have been romantically involved, especially when he makes the list of New York's 10 most eligible bachelors.