Shut In is a home invasion thriller, which came off to me like a mix between Panic Room and You're Next. The plot of the film centres on the agoraphobic protagonist of Anna. Throughout the course of the film, a trauma from Anna's past is slowly revealed, which is what lead to her emotionally damaged state. However, she is also not all that she appears to be, which is apparent when she begins to turn the tables on the three invaders in her home.
Probably one of the most stand-out performances in Shut In is by Martin Starr as probably the most sadistic and violent of the three invaders. Despite Starr's typical association with comedy, and the fact that his character looks like a lumberjack, Perry ends up being a very scary character and it is recommended that this film should be avoided by those who like budgies. Altogether, Shut In is a quite solid home invasion thriller, with some very interesting twists and turns.