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Victoria returns home from the hospital and plans to move to Seoul and leave her past behind in Incheon, but before she leaves she wants to say her farewells to her two friends. However, things change abruptly when she enters their apartment to discover their dead bodies. Chief Kang and Lee Donghae are called to the scene and Victoria is interrogated non-stop that day. Donghae becomes suspicious of her when Victoria lies to him about where she'd been the day before the murder. As he tries to discover the truth about where she'd been the day before the murder he entwines himself into her personal life bringing her into his as well.