When Señora Rosa and Señor Tomás find a stray cat sleeping on their stoop, they welcome him into their home. “Mi casa es su casa. My home is your home,” Señora Rosa tells the cat. He introduces himself as Flynn and wanders through their house while they prepare lunch, which has a delicious fishy smell. When lunch is served, Flynn hops up on the table. But before he can dig into the tuna tacos, his new friends point out a few house rules. “In my home, everyone dresses for meals,” says Señora Rosa. So Flynn borrows a doll’s tuxedo and puts it on. When Señor Tomás says, “In my home, people must sit in chairs,” Flynn brings a pillow from the sofa and puts it on the chair so he can reach his plate. Then, after a pleasant lunch, Señor Tomás and Señora Rosa discover that Flynn has some ideas of his own about how people and cats can live happilly together.