After moving back to her husband's hometown, a working mother discovers there is a strict rule for weekly family feasts: lunch is served sharp at 12 PM. When a work meeting makes her two minutes late, Father-in-law Derek demands the entire family serve a two-hour standing penalty. Mother-in-law Mabel complies reluctantly, while her husband persuades her to back down, turning the reunion meal into a burden for everyone. From trying to reason to refusing to attend, she gradually realizes that what truly needs to change is not the arrival time, but the imbalanced relationship between family members. When she decides to protect her children and rebuild her life, how long can this long-unquestioned family house rules remain in place?
