Heyy Babyy is a comedy romantic drama that revolves around three womanizer roommates Arush Mehra (Akshay Mehra), Joglekar (Ritesh Deshmukh), and Ali Haider (Fardeen Khan). They live a wealthy life in Sydney, Australia, and usually end up sleeping with different women. One day, someone leaves a baby girl outside their door with a letter saying that one of them is the father of that girl. The chaos ensues in their lives after the arrival of the baby and they try their best to take care of the baby but fail. They decide to leave the baby outside the church but can’t stop thinking of the baby girl. They decide to get her back and the three become changed men. Their lives take a turn when the baby’s real mother comes to their door to get her child. Will the three find a way to keep the baby or lose her forever?