After the death of Alex’s aunt, he inherits a grand mansion. However, there’s a catch—he must live in the mansion to fully claim his inheritance. As Alex and his wife Emma are on the verge of divorce, they decide to move in, hoping this change might help salvage their relationship. But things get complicated when Alex’s cousin Daniel and his wife Isabella, who have also inherited parts of the mansion, arrive. Now, the four of them must navigate their strained relationships while living under the same roof, setting the stage for the unfolding drama in Mansion Affairs.