Hello, Darling... As Sadie struggles to uncover her best friend's dark past, she realizes that the man she thought she knew is a stranger. Jagger's ties to his own dangerous gang and a secret dungeon hidden within the walls of The Serpent Pit bar send shockwaves through Sadie's world, blurring the lines between reality and her own desires. Amidst the chaos and deception, a clandestine connection forms between Sadie and Jagger as they begin exchanging secrets on a mysterious app. As their online relationship deepens, threatening to consume the fragile bond they share in the real world, they must confront the darkness within themselves and each other.