In order to solve the "difficult mediation" problem in the old community, community worker Lin Jiantang started the "sweet talk mediation method", but always overturned when mediating the conflicts caused by the demolition of the second-generation neighbor Gu Yanzhi - from the pet dog demolishing the house to the balcony green plants "crossing the line", from late-night decoration to the wrong delivery of express delivery. In the chaotic neighborhood disputes, the two gradually discovered that what needs mediation most is actually each other's sincerity hidden under the "tit-for-tat". When Gu Yanzhi took the initiative to become a non-staff member of the community mediation, Lin Jiantang realized that the so-called "sweet words" were just true words spoken to someone.