"Alaap" revolves around three protagonists - Pablo Majumdar (Abir Chatterjee), Aditi Mitra (Mimi Chakraborty), and Swatilekha Sen (Swastika Dutta) - who work in different IT companies. Their paths cross in the professional sphere, leading to a series of events that unfold the intricacies of relationships and commitment issues through a heartwarming romantic comedy.