Nick Landry is on the unspoilt Greek island of Avraxos to look for his ex. Anthony was the love of his life, and without knowing why he left, Nick can't move on. But Anthony isn't the only one to disappear on Avraxos. Coast guard officer Alekos Kourkoulos is on the trail of another young man missing on the island. They learn they both fell in with the glamorous set onboard a jet-black super yacht, the Nyx, before vanishing. As the mystery deepens, Nick and Alekos discover that the brighter the sunshine, the darker the shadows...