Becky takes her kids to the seaside cottage she inherited from her grandmother, hoping for a peaceful escape. Instead, they walk into a wreck: beer stench, cigarette smoke, smashed cake table, broken rocking chair, and garbage everywhere. Following the noise to the bedroom, Becky finds her mother-in-law, Susan, asleep in her grandma’s bed. Susan admits she used a spare key and rented the house to art students for a party, brushing it off as “kids being kids.”

Becky is devastated and furious. She orders Susan to clean and calls her husband, Steven, who arrives with trash bags and silent resolve. Together they scrub and salvage the space while Susan minimizes the damage. Becky demands Susan pay for the ruined furniture and carpet; Steven backs his wife, telling his mother she crossed a line.

After Susan storms out, the family keeps working—replacing a banner of memories with fresh effort: new locks, patched window, open windows, lavender candle. When Susan later calls claiming a burst pipe and begs to stay at the beach house, Becky refuses, reminding her she made money renting out what wasn’t hers.

By morning the house feels theirs again. The kids eat fish and chips, build sandcastles, and plan room decor; Steven grills and promises they’ll keep making the cottage a home. Becky realizes her true inheritance isn’t the walls but the love that protects them—and for the first time since arriving, she sleeps in peace.