Doppelganger 入侵者 EP 15

As Jia Wen hears of Tian Mei's argument regarding the unfair allocation of salary with Rui Jie prior to her sudden death, she feels uneasy. She tells Si Ting, who agrees that the matter is not as simple as it looks. Si Ting tests Rui Jie with the lie detector watch invented by Zi Jian and proves that he is lying, arousing her suspicions of him.