In the car, a man caressed Sakura's leg, and Sakura responded with a smile and gently moved his hand to her face.However, contrary to everyone's expectations, she suddenly bit his little finger forcefully.Later, she was forcibly taken to Angel Nursing Home by a nurse.

Lin Mo found Sakura in the nursing home, and he revealed to her the entanglement between himself and the pianist.Sakura asks him to prove his sanity, posing a challenge: If he can find the pianist's body and bring back a piece of his little finger as evidence, she will reveal to him the cause of the pianist's death and the secrets here.In addition, Lin Mo also learned from Nancy that the reason Sakura was placed in the critical area was because she inexplicably bit off the little finger of a female patient half a month ago.

In order to prove his sobriety, Lin Mo accepted the challenge.At the same time, he was arranged to meet with psychologist An Song again.An Song proposed that if Lin Mo was willing to share a story of her own, in exchange, she would tell Lin Mo a story about cherry blossoms.Lin Mo told about his encounter with Ivy. This affectionate love story made An Song feel envious.She told Lin Mo that the reason why Sakura was sent here was because she bit off one of her stepfather's little fingers.

Sakura's father died young, and her mother later remarried a wealthy man.However, just a year later, Sakura's mother accidentally drowned.Everyone suspected her stepfather was the murderer.After this, Sakura's mental state deteriorated and she even gave birth to a child.One day, she suddenly bit off her stepfather's little finger and was sent to a nursing home by her stepfather.For three years she remained here, and her child died.

Lin Mo asked Sakura which patient she attacked, and An Song told him it was patient No. 321.On the third day after that incident, Patient 321 was mysteriously discharged from the hospital.

In the darkness, Lin Mo quietly came to the back mountain with the flashlight Nancy gave him.Here, he surprisingly discovered a patient No. 321 who was missing his little finger. The body had been dissected and seemed to be empty inside.Immediately afterwards, he found pianist No. 399, who also suffered the same cruel fate.It was all captured on surveillance cameras.After Lin Mo's whereabouts were discovered, he once again suffered from Peng Xi's ECT electroconvulsive therapy.

Xiao Ai hurriedly came to visit Lin Mo, but was told that he was undergoing medical treatment and could not visit, and even the items he brought could not be sent in.Lin Mo took the opportunity to ask Nancy if she had encountered any unusual events while working here.Nancy recalled that a strange thing did happen the day before No. 399 committed suicide.They were in a meeting when they were suddenly informed urgently by a nurse that No. 399 was missing.Finally, they found him in the dean's office on the third floor, and No. 399 sang a tune.The dean noticed that the call had not been hung up yet and just picked up the phone to monitor, but No. 399 quickly hung up the call.

Peng Xi reported to Daming that Lin Mo was not crazy and was indeed a detective.However, Damien dismissed this and believed that the detective might also suffer from schizophrenia.With Nancy's help, Lin Mo saw Sakura again.He bluntly told Sakura that it was Shama who killed the pianist together with her.Sakura did not deny it, but looked very excited. She was convinced that Lin Mo was the one who could take her out of here.In order to repay the other party's promise, Sakura killed many people for him.However, three years later made her lose confidence in the person who ordered her, so she chose Lin Mo as her new ally.Sakura revealed a secret to Lin Mo: there is a corridor on the third floor with a river at the end, and you can escape from there.Once she successfully leaves, she will tell Lin Mo who the mastermind behind it is.

Lin Mo planned a fire to trigger the fire alarm, causing chaos in the nursing home. Lin Mo took advantage of the chaos and took Sakura away, but was stopped by Shama with an ax in the corridor on the third floor.Shama had practiced, and Lin Mo was no match. Sakura accidentally fell down while helping, and Lin Mo was knocked unconscious by the security guards who came.