"There are two types of folks who sit around thinking about how to kill people. psychopaths and mystery writers. I'm the kind who pays better. Who am I? I'm Rick Castle. Castle. Castle. I really am ruggedly handsome, aren't I? Every writer needs inspiration and I found mine. 'I'm detective Kate Beckett. Beckett. Beckett. Nikki Heat?' 'The character he's basing on you!' And thanks to my friendship with the mayor, I get to be on her case. And together we catch killers.