Don't you hate it when a dead body in your backyard gets in the way of a romantic weekend with your secret girlfriend?

Such is the fate that befalls Castle and Beckett on next Monday's "Murder, He Wrote," as everyone's new favorite couple vacations to the Hamptons, only to be rudely interrupted by a corpse falling into their pool.

Seriously, couldn't Emily Thorne and her Revenge pals have warned Caskett about the dangerous of this supposedly tropical setting?

Watch the official ABC teaser now and catch up with the latest installment in this Castle review:

Matt Richenthal is the Editor in Chief of TV Fanatic. Follow him on Twitter and on Google+.