Doubt S01E07 - That's Where Ha-bin Saw It.

At the scene of Choi Young-min's murder, a woman's necklace is found. Knowing it belonged to his wife, Tae-soo worries it might put Ha-bin at the scene. Later, Tae-soo visits Park Joon-tae after learning that Joon-tae personally knew Choi Min-ah, and the man claiming to be Min-ah's father shows up at Sung-hee's place to question her about the day Min-ah died. Meanwhile, the police station realizes there is a connection with Ha-nin.