Simply put, Rick Castle turns down sex from Kate Beckett on this Monday's Castle Season 5 installment.
Yes, you read that correctly.
To understand why, we direct readers to the following clip from "Scared to Death," in which our favorite investigative crew happens upon a corpse and Castle says it looks like the woman has been literally, well, scared to death:
So when Castle himself watches what he believes to be a haunted DVD? And then Beckett propositions him? And he thinks back to almost every horror movie? It's inevitable that this hilarious reaction would ensue: