A seemingly ordinary shopping mall conceals a deadly secret in this pulse-pounding action thriller. When her uncle, the enigmatic owner of a mysterious weapon supply store, dies under suspicious circumstances, a young woman named Ji-an is thrust into a world of assassins and high-stakes danger. Unaware of the family business's true nature, she must navigate a labyrinth of betrayal and violence as professional killers target her, believing she holds the key to a vast hidden fortune. The series stars Lee Dong-wook as Jeong Jin-man, the uncle who trained his niece in survival skills without revealing the dark truth, and Kim Hye-jun as Ji-an, the resilient protagonist forced to unlock her hidden combat abilities to survive. With its slick, stylized action sequences and a gripping central mystery, A Shop for Killers blends the atmosphere of a neo-noir crime saga with the intensity of a survival thriller, exploring themes of family legacy and the cost of violence.