After Jung Jin-man (Lee Dong-wook) suddenly passes away, his niece Jung Ji-an (Kim Hye-jun) discovers a suspicious shopping mall left behind by her uncle. Who is her uncle? What kind of shopping mall does he run? Before Ji-an understands what is going on, suspicious customers who covet the shopping mall's warehouse attack. The drama is adapted from the novel of the same name written by writer Kang Ji-young.