Temptation of Eve: Angel (2007)

Returning from a steamy excursion with her lover, Hee Ra, a plastic surgeon finds her husband dead in her bedroom. Although she has a solid alibi, detective Min Ho's intuition points to the wife as the murderer. In search of evidence, the detective begins to observe her daily routine, but gradually he is spellbound by her irresistible charm. Then another suspect appears, someone from her past, whom he believes to be the culprit. Seeing the closure of the murder case, they become closer than ever. But past secrets reveal themselves, taking him to the point of no return.