Clutter is based on the compelling true story of the wealthy, reclusive Collyer brothers who became hoarders in their Fifth Avenue mansion in 1920s Harlem. After years of compulsive collecting, the brothers have become notorious shut-ins in their aristocratic New York neighborhood. Langley Collyer is missing and Homer Collyer is found dead amongst floor-to-ceiling piles of newspapers, books, and junk. The police investigating the case, two brothers with a strained relationship mirroring that of the Collyers, are simultaneously making discoveries about themselves. Narrated by the brothers and the police investigating the bizarre case, this darkly fascinating tale is a poignant and profound exploration of human behavior.