Cheat on Me, if You Can

Yeo Joo, the famous crime novelist, spends her day locked up working on her new novel. However, her publisher needs her at her book concert. Knowing they'd show up at her house, she makes a quick getaway to her neighborhood convenience store. Meanwhile, her husband, Han Woo Sung, is a high-profile divorce lawyer who frequently appears on TV and shines in the public spotlight as the perfect husband. Later, Woo Sung steps out of a studio apartment after meeting with a female TV host.

Yeo Joo reminds Woo Sung of her power over him and the Disclaimer of Physical Rights that got her to agree to marry him. However, she now loves him enough to kill him. Baek Soo Jung, one of Woo Sung's very close acquaintances, doesn't show up for her morning show, causing her manager to seek out Detective Jang Seung Chul. Meanwhile, Soo Ho applies to become Yeo Joo's assistant, and Woo Sung prepares for his foray into politics.

The detectives continue investigating Baek Soo Jung's disappearance at the studio apartment, but they find it difficult to get their hands on the CCTV footage. Later, the investigation into Soo Jung's disappearance gets officially underway. One person tries to find the truth behind it, while another frantically moves to keep it covered up. Meanwhile, Soo Ho finds blood in Yeo Joo's basement.

Woo Sung is blackmailed and needs to come up with $50,000 by tomorrow, or else footage might leak of him entering Baek Soo Jung's studio. He comes up with a clever plan with only $5,000 in hand. Meanwhile, Yeo Joo continues to tag along with the detectives and helps them find Soo Jung's trophy, which could possibly be a murder weapon.

Woo Sung gets taken to the hospital after almost drowning in the Han River. Yeo Joo races over to the hospital to see him after hearing about the accident and sees a person she didn't ever expect to see there. Meanwhile, Soo Ho and a senior of his begin a secret mission to uncover the truth that Mr. Ma is trying to hide while a floating body is discovered in the Han River. Later, Woo Sung's blackmailer suddenly appears and threatens Woo Sung again.

Although the police have Yeo Joo as a suspect, she plays it cool and believes that they can't pin anything on her without a motive. However, little does she know, the police have Woo Sung on camera entering Baek Soo Jung's studio apartment. Later, when Woo Sung decides to tell Yeo Joo about his affair with Soo Jung, his blackmailer collapses when he realizes he doesn't have footage of Woo Sung anymore.