In The Billionaire Married a Homeless Girl movie, after a one-night-stand, Adele Moore becomes pregnant. She wants to keep the child, but her father kicks her out of the house. With nowhere else to go, Adele becomes homeless. She tries her best to raise her son despite her challenging circumstances. One day, Adele's son, Brad Moore, runs into billionaire Heston Deleon. By chance, Heston discovers that Brad is his son. He tries to track down Brad, but loses their trail. Through a series of misunderstandings, Adele and Heston become entangled again!