After winning an Academy Award for his role in Manchester By The Sea, Casey Affleck is ready for what might not be his most challenging role to date, but may qualify as his strangest: A Ghost Story sees him spend most of his time under a sheet. No, really; watch the trailer if you don’t believe me.

Affleck plays the dead husband of Rooney Mara in the movie, which was written and directed by Pete’s Dragon director David Lowery. As she recovers from his death in a car accident, Mara’s character — called, simply, M — is literally haunted by Affleck’s ghost, who appears as if conjured up from a game of Pac-Man, trapped in the house he shared with M. The film goes on to meditate and wonder (literally, by indie rock’s Will Oldham in a cameo) what comprises a legacy, and what – if anything – is left behind.

(For the doubters, Lowery has confirmed that, yes, that really is Affleck under the sheet for the majority of the shots.)

The movie debuted to critical acclaim at the Sundance Film Festival earlier this year, and will be released for non-festival attendees July 7th by A24, the emerging powerhouse studio that gave the world Moonlight, Swiss Army Man and Ex Machina.