Li Mo and his wife take in an orphaned god-brother, Xiao Fei. An ambiguous entanglement arises due to a damaged door in their home, and the couple tacitly condones Xiao Fei's boundary-crossing relationship with Li Mo's wife. When invited to his old classmate Lu Tao's wedding, Lu Tao covets Li Mo's wife and threatens her with private videos, forcing her into submission. Lu Tao's wife, Weng Qian, having long suffered oppression, hands over evidence of Lu Tao's misdeeds to help Li Mo retaliate, successfully breaking free from control. Afterwards, Weng Qian temporarily stays at Li Mo's house, developing a subtle affection for Xiao Fei. Meanwhile, Lu Tao's harassment continues relentlessly, and an urban emotional drama revolving around desire, betrayal, and redemption unfolds.
