There is a tradition of films about transgressive outsiders transforming the households into which they are invited, from Renoir’s Boudu Saved from Drowning in 1932 to its 1986 remake, Down and Out in Beverly Hills, by way of Pasolini’s Theorem (1968).
The basic plot formula—a shaggy-dog outsider lets some air into a stale bourgeois life—is a familiar staple from Jean Renoir’s Boudu Saved from Drowning (1932) to Paul Mazursky’s yuppie Los Angelino remake Down and Out in Beverly Hills (1986), though the film that I thought of most during Ade’s was the (significantly funnier) 2012 Adam Sandler vehicle That’s My Boy.