As the ABC promo below states, Castle returns on March 8 with an episode that involves "whips, women and murder." In other words: it's Castle's dream case!

Titled "The Mistress Always Spanks," the installment revolves around the death of a woman in a park. She's topless and she's covered in caramel sauce.

As a result of this finding, Castle and Beckett investigate the underground world of sexual domination. Take a look ahead at the show in our section of Castle spoilers and check out scenes from this episode right now:

Below, we've posted the official network preview for the March 8 episode.

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Matt Richenthal is the Editor in Chief of TV Fanatic. Follow him on Twitter and on Google+.