Designer Chloe and her bright, selfish older sister Elena are twins. Tycoon Julian is deeply in love with the runaway Elena; drunk, he mistakes Chloe for her substitute. Julian is obsessive and possessive, using Liam's company as leverage to force Chloe into a lover's contract and move in. As time passes he gradually falls for her, while the outwardly gentle Liam harbors hidden obsession and secretly brings Elena back to stir up trouble. The three plunge into a substitute misunderstanding, mutual pull-and-pull, and a web of schemes—the dangerous game of twins in opposition and two men fighting over one woman has begun.