Even after attending Thrillist/Showtime's house party last night at 23 Gramercy Park South, I'm still not sure what prompted those guys to take a $25 million mansion and convert each of the rooms into a set from one of the station's premiere shows (except Secret Diary of a Call Girl, which already hit splitsville, and was replaced by a room promoting Toni Collete's new show, The United States of Tara). But it was so well-executed that you couldn't fault the half-baked idea: most of the rooms didn't seem like straight set-pieces from the shows so much as a prop master's wet dream.

Also: all of the bathrooms were for decoration only? Which was weird. And you weren't allowed to sit on the chairs in the rooms, except when you could, and it was decided arbitrarily by the giant security guards standing in the narrow hallway. Just like on a real studio lot!

The highlight was the Dexter dining room, complete with vials of blood on the table the approrpiate forensic webbing done by Mr. Morgan on the show.

Mad props to the interior design team for the evening, one of whom was apparently seen getting lucky out on the back patio later that evening. Awww, they deserve it for such a swell job!

More pics after the jump:

(From left to right: more of the Dexter dining room, the phallic mound of books in the Californication room, various shoes worn by women on The L Word, Weedful Things, the line round the block to squeeze into the townhouse)