Cheat On Me If You Can

Yeo Joo reminds Woo Sung of the promises he made during their wedding. On the other hand, Detective Jang Seung Chul is called in to find the missing Baek Soo Jung, a close friend of Woo Sung.

The detectives investigate Soo Jung's apartment to find clues behind her disappearance, but they are unable to access the CCTV footage. As the investigation continues, many try to cover up the truth.

Woo Sung is blackmailed to come up with fifty thousand dollars in a day to stop a video of him related to the case from being leaked. On the other hand, Yeo Joo helps the detectives with the case.

A drowning Woo Sung is rescued from the Han River. Yeo Joo rushes to the hospital to see him. Meanwhile, secret agent Soo Ho and his senior find a new case. Later, Woo Sung's blackmailer returns.

Yeo Joo becomes a suspect in the Soo Jung case without knowing about Woo Sung's video. Later, Woo Sung decides to confess about his affair to Yeo Joo. Meanwhile, his blackmailer loses the evidence.

The detectives reach the hospital to meet an informant, who claims to know who killed Soo Jung. Meanwhile, Yeo Joo takes the publishers out for dinner and shocks them with the plot of her new novel.

Yeo Joo doubts Woo Sung of having an affair and goes to extremes to confirm the same. Later, Woo Sung meets someone he has been avoiding when he takes up a new case.

Yeo Joo continues to investigate Woo Sung's affair. Soo Ho finds an interesting detail about Yeo Joo. On the other hand, Woo Sung goes to Soo Jung's funeral and meets the CEO of her agency.

Yeo Joo finds out Woo Sung's secret in his office and warns him of confrontation at home. Meanwhile, Soo Jung's manager talks to the detectives. Later, detectives appear at Yeo Joo's door again.