On a pitch black night

min hyuk is sent to prison for murdering the parents of the woman he loves. he is framed by his best friend who also has feelings for the same woman. he gets out of prison after seven years and finds that the woman he went to prison for is married to his best friend. he also finds out that they may be related to his parents murder ten years ago. will he get back together with her or he seeks revenge against her along with her new husband?