Butch is a black alley cat who is instantly smitten with Toodles, a female cat he sees on the balcony of her wealthy family's penthouse apartment on Park Avenue. He serenades her, but the butler sends the family's bulldog named Grobo after him. A long, fast-paced chase ensues, with Grobo outwitted by Butch every time, and the chase ends with the butler accidentally hitting Grobo with a broom when the dog chases Butch, causing Grobo to turn against the butler out of anger. With Grobo and the butler out of the way, Butch makes it into the apartment to dance with his new love.