If you loved Teufelskreis Alpha, try Mein Bruder Kain
Eine Brücke zwischen einem Film, den du schon gesehen hast, und einem, den kaum jemand kennt. Das teilen sie, und was der zweite macht, was der erste nicht macht.
Was sie teilen
Both films are directed by Brian De Palma, and they both carry the paranoid mood tag, and they sit in Horror / Thriller territory. If that's the register that drew you to Teufelskreis Alpha, the second film will land in a comparable space — through a different lens.
paranoid
What Mein Bruder Kain is
Upstate New York. Autumn leaves. A child's singsong counting. Carter Nix, devoted spouse and father, is also Cain, his malevolent twin, manipulated by a mad-scientist father. Wifely infidelity triggers a murderous spiral. De Palma's psycho-sexual thriller is best approached as high camp.

