Overview: Upon confirming Yoon Young's alibi, Tae Heon hits a dead end, forcing him to reevaluate the investigation from scratch. Meanwhile, Woo Jae learns about Tae Heon and Jung Won's former romantic involvement and cautions Tae Heon against revisiting it. Jung Won, following an unpleasant three-way session involving Woo Jae and Yoon Young, realizes she's being followed.