Two things that I've always been very unsettled by are home invasions and losing my grip on reality. "The Cain Complex" expertly dives into both of these ideas.
Mateo is a family man who suffers from PTSD, which stems from an incident with his brother. When a masked gang invades his home, he must step up to defend it before his family gets home and is put in harm's way.
I expected a very straight forward story and was pleasantly surprised that I was wrong. The movie is a surreal blend of thriller, horror, and martial arts. The fights look great and work well with the spot on cinematography. The masks (as seen on the poster) are terrifying. If a gang were to come to my house in those, I'd be found hiding under my bed or in the closet.
I fully recommend "The Cain Complex". Watch it at night with a big bowl of popcorn.