Detective Zis and his subordinates discovered that the murder weapon that killed Joey was consistent with the weapon that killed Maya's sister Claire. However, the gun test results showed that Maya's pistol was indeed broken, and she had an alibi for the first murder., so the hypothesis that Maya may be the murderer is ruled out.

However, because both cases occurred in the same family, Ziss had to suspect other relatives. At the same time, they also learned from Maya that Claire had worked under Joey during her lifetime, so they could not help but speculate that the two could not get along.Good to have an affair.By chance, Maya learned from her friend Eva that Claire had another secret mobile phone and that she seemed to have had a phone dispute with someone before the incident.Maya thinks this is an important clue, so when her brother-in-law Eddie is away, she sneaks into their house to look for the mobile phone hidden by Claire.

Maya discovered from the call records that Claire used this mobile phone to communicate with a gaming club during her lifetime.But Maya went directly to the club to inquire, and the local person in charge completely denied that she knew Claire.Let this line of mysterious mobile phones hit a wall again.Chiss continues to speculate that the two may have had an affair, excluding Maya who may have a motive for committing the crime. Furthermore, the biggest suspect is his brother-in-law Eddie. However, Eddie also has an alibi provided by his colleagues, so Chiss is now the target of the crime.Only one person remains.

Chiss took his subordinates to ask Isabella, the nanny who knew the family situation best. Isabella denied the surveillance footage she had seen and said she had not stolen the memory card, but Chiss noticed that her reaction seemedThere is another hidden story.Zis's dizziness symptoms became more and more serious. Nicole, a good friend and psychologist, advised him to go to the hospital for examination as soon as possible, but Zis believed that this would affect his future work.

Maya met Joey's sister Caroline on the day she made the will, and was told by the attorney in charge that because she had not received Joey's death certificate, she could not make the will today.Caroline was concerned because she had also lost a younger brother, Andrew, who fell into the sea. This time, she also did not see Joey's body, so she could not accept that he was gone, and said that she wanted to see Joey's body.At that time, he was rejected by his mother Judith.

Eddie's daughter Aibi and son Xiao Dan found a film camera among their mother's belongings. Out of curiosity, they took it to the photo studio to develop it. Unexpectedly, they discovered that their mother had been pregnant in 2003, but their backgrounds were unknown.None of the years fit this period.On the other side of the camera, Caroline told Maya that their family's online bank had some suspicious remittance records recently, and the account that received the money turned out to be Detective Chis who was responsible for investigating Joey's case.