Everly Hart, a talented griever and amateur detective, is sent away to Echo Bay in the aftermath of a high-profile case. As she arrives in the small coastal town, she quickly realizes that the place is not as idyllic as it seems. The tide brings danger and death every seven years, and the locals whisper about a pirate’s cursed treasure buried somewhere on the coast. Is it a curse or a grimm creature behind the deaths? As Everly delves deeper into the mystery, she finds herself constantly at odds with her longtime crush, Hunter Abernathy. Despite her oath to never date her friend’s brother, Everly cannot help but feel drawn to him. As the death toll grows and the stakes get higher, Everly must navigate the treacherous waters of the case and her complicated feelings. Will she solve the mystery and resist the temptation of forbidden love?