The Queen of Crime (2016)

Mi Kyung runs a small hair salon. Her son Ik Soo is preparing for the bar exam and is staying at an apartment for bar exam students. Mi Kyung learns from her son that he has received a 1.2 million won ($1,100 USD) water bill. She is stunned and decides to go to the apartment complex to find out more details. There, Mi Kyung senses that something isn’t quite right and begins to investigate. (Source: AsianWiki)