Jung Ba Reum (Lee Seung Gi) and Go Mu Chi (Lee Hee Joon) are persistent in pursuing the culprit in their recent case.

After turning into a psychopath in front of Go Mu Chi, Jung Ba Reum becomes more sensitive and aggressive caused by his brain transplant.

Lee Seung Gi becomes Violent after Receiving a Brain Transplant

To know how the murder happened, Jung Ba Reum and Go Mu Chi tried to reenact the scene. But when they were in the middle of their operation, Jung Ba Reum became violent again and almost hurt Go Mu Chi.

Due to confusion, Jung Ba Reum visited his doctor to know his previous condition. He could hear things and remembered aggressive behaviors from Sung Yo Han's brain.

The police officer wanted to do another brain transplant. Jung Ba Reum wanted to remove Sung Yo Han's brain from him because he's scared to become a person he didn't imagine he could be.

Unfortunately, according to the doctor, even if they find a new donor, Jung Ba Reum can't undergo another surgery because it would be dangerous for him.

ALSO READ: 'Mouse' Episode 9: Lee Seung Gi Inadvertently Turns into a Psychopath in Front of Lee Hee Joon

Father-Daughter Relationship of Go Mu Chi and Oh Bong Yi

Detective Go Mu Chi advised Oh Bong Yi (Park Ju Hyun) to leave the house because their neighborhood is unsafe. The infamous murderer Kang Duk Soo (Jung Eun Pyo), who has been released from prison, is back and is living in the same neighborhood where Oh Bong Yi is.

The detective offered Oh Bong Yi to live in his apartment to be safer for her. He wants to treat her as his daughter.

However, Oh Bong Yi refused because the house where she lives is the only place she can comfortably live. Besides, it's her father's house.

Also, for her, leaving the neighborhood wouldn't solve the problem. She said she should overcome and solve it there instead of running away.

Jung Ba Reum is Determined to Find the Real Culprit

Meanwhile, Oh Bong Yi heard Woo Jae Pil's new case (Jung Suk Yong), who was arrested in the knot murder case. She shared some insight that would help in the investigation.

After hearing her side, Jung Ba Reum told Go Mu Chi the possible things that had happened in the murder and that Woo Hyeong Cheol is the true culprit and not his father, Woo Jae Pil. He was then arrested by the police and ready for further investigation.

But another two cases occurred nearby, and the process on how the killer did the murders is the same as how Sung Yo Han (Kwon Hwa Woon) did before. This gave Jung Ba Reum a clue that there is a mastermind behind Sung Yo Han's killings.

Jung Ba Reum wanted to prove that the brain transferred to him was not from a murderer. He started to look for the real culprit on his own.

ALSO READ: 'Mouse' Stars Lee Seung Gi, Lee Ji Hoon, & More Display Friendship in New Stills

Did you also watch "Mouse" Episode 10? What are your thoughts about it? Tell us in the comments!

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Written by Shai Collins