Midas is a business drama about mergers and acquisitions between companies. Kim Do Hyun (Jang Hyuk) is offered a deal he couldn't refuse, by Yoo In Hye (Kim Hee-Ae), CEO of Loan Asia. He decides to help her to become a successor of her father's real estate company. While helping In Hye, Do Hyun is engrossed with greed. His fiance, Lee Jung Yun (Lee Min-Jung) notices, and worries about him.