Watch Now: A Sneak Peek at Desperate Housewives' Halloween Hunt!

Gaby, Bree and Lynette are searching for the body of Gaby's murdered stepfather in Sunday's episode

It's not Halloween on Wisteria Lane without a dead body!

And that's exactly what three of our ladies are searching for on Desperate Housewives'  holiday episode this Sunday.

So why are they attempting to dig up a corpse? We have an exclusive sneak peek at D.H.'s sure-to-be thrilling Halloween hour!

In this exclusive clip from Sunday's episode ("Witch's Lament"), Gaby (Eva Longoria), Bree (Marcia Cross) and Lynette (Felicity Huffman) are on the hunt for the body of Gaby's murdered stepfather after learning that Ben's (Charles Mesure) real-estate development excavation is taking place on that very spot. You know, just your typical Halloween problem.

Unfortunately for our flashlight-wielding trio, things take a turn for the worse when they are spotted and must separate before stumbling upon a shocking discovery.

Desperate Housewives airs Sundays at 9 p.m. on ABC.