Episode Description: Beware, spoilers! To read - hover over the text.
Another murder victim turns out to be a member of the dance group, who worked on a cruise ship. Castle and Beckett, again like in the good old days, immersed in a murder investigation...only to end up in unplanned journey on Board of the ship - where with them, perhaps sailing and a murderer. The parallel investigation of the wife trying to understand - who's fooling who, for what reasons, and what could cost the loss of confidence to a loved one. In the end, Kate Beckett stands in front of awareness of a simple truth: despite the high degree of risk in its specific (outside the sector) activities, no danger and conspiracies not worth it to lose the trust and love of a man who from day one never gave reason to doubt his loyalty, courage, devotion and love for her... Now she can only make the right choice.