John Wayne Gacy kidnapped, sexually assaulted, and murdered 33 boys and young men — many of whom were found in a crawl space beneath his Illinois home in 1978. Now, his crimes and victims' stories are being revisited in a new scripted drama series.

In a clip from the first episode of Peacock’s Devil in Disguise: John Wayne Gacy , shared exclusively with PEOPLE, Severance star Michael Chernus , who plays the infamous serial killer, speaks with his defense attorney, Sam Amirante, portrayed by Michael Angarano .

Amirante asks Gacy to come back the next day to fill out a cease-and-desist letter he plans to file against the Des Plaines Police Department to "get them off" Gacy's back. As Amirante tries to leave, Gacy reveals some startling information.

"I think I know why they're

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