She sold him one year of marriage. She didn't tell him she's carrying his child. When Elena Hart's mother needs a heart surgery she can't afford, a stranger in a tailored suit makes her an impossible offer: marry billionaire CEO Adrian Cole for one year, play the perfect wife in public, and walk away with two million dollars. Desperate and out of options, Elena signs. But Elena is hiding a secret that could destroy the deal — she's pregnant, and the father is a masked stranger from a charity gala three months ago. A stranger Adrian doesn't remember being. As the ice-cold billionaire starts to thaw, and a jealous ex circles with a vengeance, Elena must decide how long she can keep the truth buried… because the closer Adrian gets, the more dangerous her secret becomes. A slow-burn billionaire romance packed with contract marriage tension, a secret baby, and a twist that changes everything.