While Gu Mohan was video chatting with his girlfriend Lin Luo who was working overtime, he found a face hidden in the cabinet behind her and hurried to his girlfriend's company. After arriving, he experienced twists and turns such as access control obstruction, strange shadows, and colleagues' suspicions, and was in danger with Lin Luo, colleague Zhang Wenxuan, and guard Wang Chengyu. As Ye Lingyun's body was discovered, the truth was gradually revealed. The two fought back against the murderer, and finally escaped with wisdom and courage, while the murderer also suffered the consequences.
