Bianca De Vera finally said yes to Dustin Yu's proposal-but behind the cheers of fans and the whispers of bashers, a darker chapter of their love story is about to unfold. Together with their fellow Pinoy Big Brother Collab housemates, the couple joins a long-awaited reunion at Ivana Alawi's Baguio mansion. What should have been a celebration quickly turns tense. Ralph catches AZ with Dustin in a room. Mika questions Brent's true intentions. And one by one, housemates begin to vanish-while Michael accuses River of being a serial killer. Can Bianca and Dustin make it to the altar... or will their "till death do us part" become all too real?