The Two Sisters aka In Cold Blood: 1x20

Episode 20

Now that Soo Hyang has the recorder from Dan Ung, she decides to talk to Do Eun in person. She asks Hye Won to keep it a secret from Ji Chang as she wants to handle it on her own. When Soo Hyang calls Do Eun to confront her with the evidence, Do Eun flips out and asks for forgiveness.