Castle, Season 3

Rick Castle:
Why would anyone want to kill a writer?

Kate Beckett:
Oh, so many reasons.

Rick Castle:
Or maybe Sarah discovered that Greek billionaire Mikos had invented a machine that could cause blizzards that would plunge the entire world into an ice age.

Kate Beckett:
Really? You're gonna go with a evil weather machine?

Rick Castle:
It already happened. On General Hospital. Look, bear in mind, we're entering into a world of epic drama with larger than life characters, each one teaming with twisted secrets and personal intrigue. It stands to reason that the motive for this murder will be worthy of a soap opera.

Kate Beckett:
Castle, even in a world of epic drama, the motives are usually quite ordinary.