Monster 2014 Bok Soon KIM Go Eun runs a street stall while taking care of her younger sister Bok Soon may not be the brightest girl but what she lacks in intelligence, she makes up for in uncontrollable rage Shes infamously known as the psycho bitch in her neighborhood Bok Soons relatively peaceful life with her sister is disrupted when they cross paths with a serial killer named Tae Soo LEE Min Ki Tae Soo kills Bok Soons sister because she may have stumbled upon the truth of his murderous lifestyle Bok Soons rage consumes her completely, leading her to plot her revenge on Tae Soo Meanwhile, Tae Soo vows to tie up his only loose end Bok Soon Bok Soons descent into revenge and electrifying struggle with Tae Soo culminates in a riveting conclusion Who will emerge alive hot blooded Bok Soon or cold hearted Tae Soo