"You're my hero, Harry."
By night, Harry Styles is the Inferno, a superhero who can shoot flames out of his palms. Louis Tomlinson is Mr. Arctic, his arch nemesis, and can freeze practically anything. They have decided not to tell anyone about their superpowers, not even the ones they love.
By day, Harry Styles is an accountant who is in love with his roommate. Louis Tomlinson works at a skating rink and frequently brings home pizza for his roommate, Harry, whom he secretly has a crush on.
Each night, they come home late from battling each other and stitch up each others wounds. But, one night Mr. Arctic finally catches the Inferno. And, Harry doesn't come home.