The sound of the clock as it ticks by the passing seconds, the creaking of the door as it close and open, the secret messages and silent calls as well as the tangled sheets of the bed as the sun rises, were the only witnesses of their failed romance. 

When Do Kyungsoo is the highest paid actor of his generation and suddenly a rookie actor named Kai entered the industry and became a midnight star who gained popularity by his incredible appeal and charisma crosses each other's path, will this make them lovers or rivals?