But at least ABC has treated fans to an early look at what's down the road.
On March 24, a murder investigation leads Castle and Beckett down a twisty trail, as their victim turns out to be a confidential informant for the U.S. Attorney.
Castle Season 6 Episode 19 becomes even more complicated when the U.S. Attorney in question turns out to be Captain Victoria Gates sister. Awkward! It's a detail that could make things easier... if the siblings were actually on speaking terms.
It's never easy when you mix murder and family.
Check out these photos from "The Greater Good" - and don't forget that you can always watch Castle online here at TV Fanatic. We make it easy...