Castle

Once upon a time, there was a television show called Castle, and it was the most beloved television show in all the land.

Though little was known about its 17th Episode, "Once Upon a Crime," people far and wide had faith it would deliver another hour of gut-wrenching suspense and exhilarating sexual tension between its fair maiden and her prince charming.

But in all seriousness, here is what we do know: Taylor Kinney from The Vampire Diaries will guest star as the husband of Leslie Morgan, played by NCIS' Sarah Jane Morris, whose sister is found dead in Central Park.

But this killer isn't just any regular killer — he's a deranged serial murderer who is staging his killings to mimic famous fairy tales. Charlotte, the sole survivor, helps Castle and Beckett discover an important link between all of his victims … and we hear there are more than one.

It all begins with a beautiful girl in a blood-red cloak …

Beckett's not too keen on the whole Big Bad Wolf theory, but that doesn't mean she lacks imagination. On the contrary, she seems to have a soft spot for the Brothers Grimm and their grim tales.

Meanwhile, back at Rick's castle, mother Martha is preparing for a staged reading of her one-woman play, How to Do It All … Without Even Trying. And by "do it all," she means … well, just watch.

Original Air Date: Castle Season 4, Episode 17, "Once Upon a Crime" airs on Monday, February 27, 2012 at 10 p.m. ET on ABC.