Suspicious Partner (2017)

Noh Ji Wook, a brilliant prosecutor, and Eun Bong Hee, a rookie intern prone to embarrassing situations, become entangled when Bong Hee is falsely accused of murder, and Ji Wook risks his career to help her. As their careers and love lives intersect, they must work together to catch the true culprit behind a series of murders before it's too late. Meanwhile, Ji Wook's former close friend, Ji Eun Hyuk, reappears, adding complexity to their already troubled relationship. (Source: MyDramaList)