Marcel is an endearing one-inch-tall shell who ekes out a colourful being with his grandma Connie and their pet lint, Alan. Once portion of a sprawl community of shell, they now populate entirely as the exclusive survivor of a cryptic calamity. But when a documental film maker detect them amongst the jumble of his Airbnb, the short movie he post on-line brings Marcel million of passionate fan, as good as unprecedented danger and a new hope at find his long-lost household.