England, 1936. Young surrealist artists, including René Magritte and Salvador Dalí, gather at the grand West Dean estate for a private exhibition. When a shocking murder occurs, Scotland Yard is called in and the estate is locked down.
A new incident shakes West Dean. As the surrealist artists begin to suspect one another, Scotland Yard's investigation starts to focus on a single guest. Paranoia spreads, secrets unravel, and new facts about Sheila's past come to light.