Baek Dan-hee is a high-level security expert and white-hat hacker who is not only a "top performer" at work but also incredibly quick-witted. However, she has one major problem: whenever it rains, she suffers from such intense nightmares that she cannot sleep at all. Then, one day, she accidentally spends a night with Executive Director Kwon Tae-san of the Taeju Group... and sleeps like a baby? Casting aside her pride, she makes a bold proposal: “Executive Director! I’ll just hold your hand and sleep!” This is a romantic comedy about a talented man and woman who become deeply intertwined through a single incident and begin to heal each other's wounds.