After failing to deliver for a demanding bride, a wedding planner makes a bold business move and throws the wedding of the year — for herself.

Bu Tejo goes on a road trip to attend her son's engagement party in Jakarta, but she brings along her own hidden agenda.

"Pada Suatu Hari..." follows Bagas, a teenager stuck in a cycle of fleeting relationships. After a late-night argument with his best friend Hakim, who warns him about his impulsive approach to love, Bagas spends the next day at his usual café—where he meets Naya, a new barista.