While Monster Butler sounds likes the sort of title a Dreamworks Animation flick would have, it’s actually something potentially far more interesting, as it’s a biopic of a bisexual jewel thief/con man/serial killer! It’s also pulling a decent cast together, as THR reports that Gary Oldman, Dominic Monaghan, Malcolm McDowell and Joanne Whalley are all onboard.

McDowell has the lead role as Roy Fontaine (born Archibald Hall), who spent most of his life working as an outwardly respectable butler, while secretly committing all manner of crimes and murders. The movie will chronicle his personal descent into darkness leading up to his eventual capture.

Oldman will portray Wiggy, a taxidermist with anger issues and business on the side who partners with Fontaine on a number of crimes before things get heavy. Monaghan will play David Wright, a key player in Roy’s life and who also serves as his Achilles’ heel. Their relationship begins in prison and restarts when they both work on an estate. But a blackmail attempt forces Fontaine’s hand and begins his descent into murder and mayhem.

Shooting will start in June in Scotland.