In Mansion Affairs, Alex becomes the heir to a grand mansion after his aunt's passing, but his inheritance comes with one stipulation: he must live in the mansion to claim it. Struggling with a failing marriage, Alex and his wife, Emma, decide to move in, hoping the change might mend their relationship. Complicating matters, Alex's cousin Daniel and his wife Isabella, who also share a claim to the mansion, arrive to stake their part. Now, all four must confront their personal conflicts and tangled relationships while coexisting under one roof, setting the stage for a tense and dramatic unfolding in Mansion Affairs.