Sin Ju Hyuk (Jung Sung Il) tries to ruin Ryu Soo Yeol's (Lee Dong Wook) relationship with K (Wi Ha Joon) in "Bad and Crazy" episode 11. Meanwhile, the duo teamed up to reveal that Ju Hyuk is a murderer.

'Bad and Crazy' Episode 11: K and Ryu Soo Yeol Go Undercover

After Shim Jung Hoon (Park Min Sang) confessed that Sin Ju Hyuk is the mastermind behind the mysterious game and manipulated the minds of teenagers to commit crimes. Learning this, Ryu Soo Yeol and K decided to work together to prove Ju Hyuk is a psychopatic murderer.

Meanwhile, Boss Yong (Kim Hieora) found Andrei Kang's (Won Hyun Joon) body. She was saddened by the death of her loyal friend and business partner. She trespassed the crematorium to give Andrei a peaceful and decent funeral. Boss Yong wanted revenge and was determined to find the person who killed Andrei.

Soo Yeol went to Sin Ju Hyuk's clinic and confessed he has an alter ego. On that day, the psychiatrist finally met K and tried to make him believe he killed Ryu Soo Yeol's father. The police officer and K ended up arguing after Soo Yeol stopped K from hurting Ju Hyuk.

The police officer explained it was not the right time yet to get rid of the psychopathic murderer as they need a strong evidence to prove Sin Ju Hyuk's wrongdoings.

The duo went undercover in their high school uniforms and looked for the recording files of their latest session with Ju Hyuk. They also found the remaining files that proved that the psychiatrist manipulates his patients to kill people.

Lee Hui Gyeom Discovers Her Ex-Boyfriend Ryu Soo Yeol Has a Split Personality

Ryu Soo Yeol found Seong Bok Joon (Jang Nam Boo) unconscious inside his shop. He was sure it was Jeong Yun Ho who wanted him dead, that was why the police officer immediately went to Sin Ju Hyuk and asked him what he really wanted from him.

The psychiatrist threatened Soo Yeol that his misery won't stop and was still willing to make him suffer just like what they did during their childhood years.

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The following day, Soo Yeol met Bok Joon again in an abandoned warehouse. There, he confirmed that Sin Ju Hyuk, who also goes by the name Jeong Yun Ho, killed Bok Joon in front of Soo Yeol.

Sin Jun Hyuk was dragged to the police station and was interrogated by Soo Yeol. Lee Hui Gyeom (Han Ji Eun), who was also present at that time, was surprised about the conversation between Jun Hyuk and Ryu Soo Yeol.

Soo Yeol, on the other hand, finally confessed to Hui Gyeom that he has a split personality, and that the person he used to call K was his alter ego. Hui Gyeom then remembered all the strange actions Soo Yeol did before. She asked the police officer to step out of the case so that it wouldn't be complicated for them to solve it.

Sin Jun Hyuk Takes Advantage of Ryu Soo Yeol's Sick Mother

Since he is known as a good medical practitioner, Sin Jun Hyuk started a job in Munyang General Hospital, an Alzheimer's treatment center where Ryu Soo Yeol's mother used to get her check up done.

Jun Hyuk became Seo Seung Sook's (Kang Ae Shim) doctor and he used it as an opportunity to manipulate her since she has Alzheimer. The police authority found a tip that a suspicious murder weapon was hidden inside Ryu Soo Yeol's residence. They then found the knife covered in blood and brought Soo Yeol to the police station.

The police officer knew it was Sin Jun Hyuk who set him up and manipulated his mother to put the knife inside their home. Ryu Soo Yeol was already overwhelmed by what was happening around him.

After he beat Jun Hyuk, he snatched the gun from his colleague and pulled the trigger towards Sin Jun Hyuk. He was brought to a rehabilitation center to observe if he still has his split personality.

He acted like he couldn't remember K anymore as it was his only way to get out.

IN CASE YOU MISSED IT: 'Bad and Crazy' Episode 10: Lee Dong Wook Misses Wi Ha Joon + The Duo Discovers Jung Sung Il is Their Real Enemy

Have you watched "Bad and Crazy" episode 11? How's the story so far? Share your thoughts with us in the comments!

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Shai Collins wrote this article.