Ella is on the way back to her hometown with her kids for her sister’s wedding. The remote little village has changed a lot since she left: young people have long moved away, leaving mostly the old folks behind, seemingly forgotten by the rest of the world. When a huge thunderstorm hits the little town the night of the wedding, the residents of a retirement home start behaving strangely. Led by a giant retiree, a group of elderly inmates attacks the young caretakers with horrific brutality. Following a blackout, they break down the security doors and escape into the cold rain. The music attracts them to the wedding where soon Ella will have to fight for her family’s survival.