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A brilliant math teacher formulates the perfect cover-up after his neighbor murders her abusive ex-husband.
Suk-go
Hwa-sun
Sang-joon
Yoon-ah
Detective Min-bum
Nam Tae-woo
Chul-min
Team Leader
Madame
Suk-go
Hwa-sun
Sang-joon
Yoon-ah
Detective Min-bum
Nam Tae-woo
Chul-min
Team Leader
Madame
Similar to Perfect Number
