Defending swimming champion Oliver thought losing his qualifier spot to the unranked phenomenon Rio was rock bottom. He was wrong. The nightmare truly begins when Rio turns up in his living room as his new stepbrother. Now stranded at Rio’s campus and forced into grueling shared practices, Oliver fixates entirely on payback. Yet under the chlorine haze and relentless drills, he starts catching the heat behind Rio’s unblinking stare. The obsession isn't about dominance on the podium—Rio has been tracking him like prey long before they ever touched the wall.