Gladys Parker and her sister, Agnes, managed a financially struggling detective agency inherited from their father. Gladys, with her charm and sensuality, often used her beauty to gather information for their cases.
She was also a childhood friend of the feared mafia leader, Valentina Leone, with whom she shared secrets. But Gladys' life took a turn when they received a visit from Isabella. Her mysterious proposition thrust the sisters into a whirlwind of events, testing their loyalty and revealing dark secrets that shook their lives and the city's foundations. Nothing would ever be the same after their encounter with Isabella.