Mary has raised a family in this house. She's watched her daughters play and laugh and bicker in its rooms. And now, on a late summer's day, she's getting married here . . . and has summoned her fractured family to celebrate.

In the place that's been a sanctuary for some and a battleground for others, the long-awaited reunion unfolds. But as each guest's memories, secrets and tensions rise to the surface, can the festivities help mend broken bonds and heal bruised hearts, or are some things impossible to forgive - even when it's family?