At her father's funeral, 26-year-old architecture master's graduate Evelyn Langston is forced by her stepmother Margot to sign a ruthless contract: marry Adrian Blackwood, New York's real estate tycoon, in exchange for trust renewal, debt clearance of 50 million dollars, and the preservation of her century-old Manhattan mansion. Cornered, she discovers a secret letter revealing her contractual husband is the mysterious boy who ruined her first love and changed her life in Paris seven years ago. She signs the agreement calmly, stepping into a loveless marriage built on bargains. As past secrets, family feuds, inheritance traps and human calculations intertwine, the identities of hunter and prey are reshaped the moment her signature lands on the paper.
