Promising fund manager Kang Jae-hoon is at the brink of despair when his company goes bankrupt. He decides to take an impulsive trip to Australia to visit his wife, Soo-jin and their son Jin-woo. Upon arriving, Jae-hoon sees them living happily without him and starts suspecting Soo-jin's affectionate relationship with her neighbour, Kris. Taken aback by the situation, Jae-hoon decides to watch them from a distance, only to confront a shocking truth that goes against what he stands for.