Maika Monroe (It Follows), Karl Glusman (Nocturnal Animals) and Burn Gorman (Enola Holmes) have signed on to star in psychological thriller Watcher, directed by Chloe Okuno. Set to begin shooting this month, Watcher follows young married couple Julia (Monroe) and Francis (Glusman) as they move into a new apartment in Bucharest just as a citywide panic is brewing over a possible serial killer on the loose.