That Man is There (2011)

Seo Joon Hee, a pretty photographer, and her professor and novelist husband Jung Min Suk, appeared to be a perfect couple whom everyone envied. However, Min Suk was discovered murdered shortly after the morning news and Joon Hee immediately becomes the police's prime suspect. She only has fragments of memory about the day's events, and eventually turns to her longtime friend Yoon Jae Hoon for help.