Operazione Viper / Urla dal profondo / L'essenza della follia

A gruesome Temsek experiment on a Caribbean island... In the midst of a hurricane, Harlan and Kurjak, aboard a cargo ship, will have to fight against the fury of the elements and the horrors unleashed by "Operation Viper"! When the divers of the "Orion" find the wreck of the "Graceland", a Puritan pilgrim ship that sank in the seventeenth century, horror explodes! The quiet village of Halleck Island is threatened by dark forces and only Harlan and the local sheriff have the strength to fight against an ancient curse! Grasse is a French town known for its perfumers... One of them, the lovable Louis, suffers from strange amnesia and is haunted by bizarre visions. Two demonic individuals want the recipe for a dangerous perfume from him, by order of General Zafon of the infernal army...