His wife died tragically at home, and all evidence points to Shen Muzhi. Instead of defending himself or fleeing, he invited the whole network to live broadcast and vowed to solve the case himself within seven days. The former sister-in-law Jiang Yingtong was ordered to monitor, the old superior Zhao Chongshan kept setting up obstacles, the forensic doctor Yuan Shouyi hid the key report, and the real murderer behind the scenes was sitting at the head of the charity dinner. When the live broadcast camera focuses on every lie, what Shen Muzhi wants to do is not to prove his innocence, but to tear everyone's masks to pieces in public.