Interestingly enough, it’s been confirmed that season 4 will utilize a different structure. In previous seasons, each feature-length episode presented a new mystery. Season 4 will instead tell one overarching story across the whole season.
On the day of the wedding of a medical student with a wealthy plastic surgeon, the families of the young couple realize that the only thing they have in common are secrets and lies. The secrets of both sides will be revealed during the wedding ceremony.