Liverpool, 1931. Meet Daisy Gallagher, a mother from a large Irish Catholic family living in the tough streets of pre-war Liverpool. She’s a huge character, passionate in her loves and hatreds. After her own mum dies, she becomes head of her poverty-stricken family. Her best friend Nellie O’Brien is dying. She needs urgent medical attention. Daisy’s desperation for money leads her into the darkened streets and into the arms of drunken sailors willing to pay. Fighting competition, weeping at her own suffering, laughing with her clients, she becomes the toast of the waterfront and earns enough money to help her friend and her family. Daisy manages to hide her new occupation from her loved ones. But what happens when her sailor husband comes back from sea?