Outtakes from a defunct pyramid scheme's promotional and instructional videos incidentally document its unraveling. The source material - over 60 hours of raw footage produced in the wake of the 2008 financial crisis-was appropriated, fictionalized and reenacted for the film. In spite of the scheme's manipulative tactics, participants push back against its logic through performative errors or deliberate rejection. Flat Pyramid isolates these moments and, consequently, mimics the trajectory of the scheme itself: inevitable collapse.