Form 100 is a tragic, multi-faceted detective novel. It follows the story of Zaza Zandukeli, an unemployed writer with an elderly grandmother. One day, a film studio offers Zaza the chance to compose a script about the story that has troubled him for years: the suicide of Martha, a former lover. Martha and Zaza were childhood friends, but her family had always been plagued by severe moral and existential problems. Following the arrest of Martha's brother, her mother went abroad for work. Left to her own devices, Martha encounters an investigator who promises her welfare and her brother's release in exchange for engaging in sexual contact with five boys of her age. Experiencing severe psychological pressure and being spied on daily, she willingly agrees to the deal. Shortly after, Martha - broken physically and spiritually - hangs herself in her room. These events do not go unforgotten. As the five boys grow up and go their own ways in life, they remain forever haunted by their evil deed.