Theo’s older brother, Caleb, died in the basement of Drake Group’s CEO while working as his “personal secretary.” The official ruling was suicide. Theo never believed it. Using a false identity, he passes the interview and becomes the new contract secretary to Easton, Drake Group’s cold and intimidating CEO. By day, Theo brings him coffee, handles documents, and stays at his side. By night, Easton takes him into the basement, where their relationship follows a very different set of rules. Their safeword is “31.” The moment Theo says it, everything stops. But the closer Theo gets to this dangerous man, the harder it becomes to separate fear from attraction. Easton clearly knows that Theo is secretly investigating him, yet never exposes him. And every single time Theo uses the safeword, Easton backs away without hesitation. Then Theo finally breaks into Easton’s study and uncovers a suspicious $9.8 million cash-out connected to Caleb’s death. But the real killer turns out to be the last person anyone would suspect— Julian, Easton’s charming and soft-spoken childhood friend. Behind his gentle exterior lies a dangerous obsession with Easton. For years, Julian has secretly stalked him and eliminated every secretary he believed had gotten too close. Inside Julian’s hidden room, the walls are covered with surveillance photos. Glass jars hold personal belongings taken from the dead. In an instant, hunter and prey trade places. And as the truth closes in around them, the safeword that once marked Theo’s limit becomes the final symbol of trust between him and Easton.