The general concept for what became the Flashdance hit came to songwriter Dennis Matkosky while watching a news report about a serial killer. He jokingly thought, "With my luck, this guy lives next door to me," and immediately jotted down the lyrics that came to mind: "He's a maniac. He just moved in next door. He'll kill your cat and nail it to the floor." He took the idea to his friend Michael Sembello, whose eyes widened with interest when he heard the title. As soon as Matkosky was seated at a piano, Sembello said, "All right. Hit the weirdest chord you know," and they began composing the music. Their inspiration for the bridge came from the Bloodrock song "D.O.A.", a number 36 hit on the Billboard Hot 100 in 1971 that recreated the two-tone siren used on ambulances in England at that time, and Sembello came up with the idea of using "Chopsticks" to introduce the instrumental portion of the song. Matkosky said, "We thought it was a joke because we weren't trying to write a song. We were trying to make our friends laugh."