Castle, Season 3

Martha:
It's like when I was doing Who's Afraid of Virginia Woolf and I thought my understudy was trying to poison me.

Castle:
Oh, yeah, the daily blood tests I paid for. Wait, she did poison you. The Swiss chocolate she gave you was a laxative.

Martha:
Eh, added a certain urgency to my performance. But the point is, you indulged my paranoia. So therefore I'm going to be in the park - five 'o clock - at a discreet distance to make sure that Alexis' secret admirer is not an axe murderer.