CEO's mistaken lover

When Cathy wakes up, she finds herself sleeping with her future boss, Lester. Worried about being fired, she tries to stay low-key and avoid any contact with him. What she doesn't realize is that Lester has mistaken her for her sister, Vivian. As their work interactions become more frequent, the tension between them grows, with a lingering sense of familiarity. How long can fate hold its breath before he finally recognizes her…?