Double Trouble

When identical twin brother Baek Seon-woo agrees to assume the identity of his brother in order to prevent him from losing the rich Yoon Ju-won, he soon finds himself in much deeper waters than he had bargained for. For as he really tries to win over Ju-won, he meets only chilling indifference-until an ill-fated, drunken night alters the face of their relationship, generating an unlooked-for ignition of passion between them. And when morning breaks, Ju-won’s behavior has changed overnight, leaving Seon-woo completely adrift. So, how do people just flip overnight from cold to affectionate? Was Juwon the person more than met the eye?