She's armed. He's dangerous. Welcome to Castle-Fans.Org, a fansite for ABC's hit crime show, Castle - starring Stana Katic and Nathan Fillion. The show revolves around New York Times best selling novelist, Richard Castle, who shadows NYPD homicide detective, Kate Beckett, on murder investigations and helps her solve the crimes. The entire cast is brilliant and it is impossible not to love all of the characters, and not to mention, the romantic tension between the two leads. Will they or won't they? I guess you'll have to watch to find out! Catch the show Monday nights at 10 PM EST, on your local ABC station. Solving murders has never been so much fun!