An icebreaker is stranded in a storm during the night of the Winter Solstice. Coast Guard Sanna Tanner leads the rescue team, who are haunted by disturbing events, and Sanna has to solve the mystery before she becomes the next target.

Twenty-four-year-old Riku pretends to be rich and infiltrates the elite society of Helsinki with the motive of revenge. But his plan gets shaken up when he unexpectedly gets drawn to the luxurious lifestyle and even falls in love.