Silent Bloodnight

Silent Bloodnight is a 2006 horror film written, directed and produced by Stefan Peczelt and Elmar Weihsmann.

While doing a feature for the news, reporter Sabrina Meyers the chiefs daughter, who glimpsed a bloodied Jamie the night she died finds Jamies necklace in the lake, theorizes Jacob who says Nina was found and placed in a sanitarium, while Jamie went back home murdered her, and asks around about him. Meanwhile, Sabrinas boyfriend Matt and three others Joe, Cindy and Dana are getting a summer camp ready. Sabrina uncovers more circumstantial evidence that something happened at the lake, but no one believes her stories, though her investigation draws the ire of the killer who murders Sabrinas cameraman Andy and his girlfriend Jennifer and his accomplice, a figure dressed in white that attacks Sabrina, but is scared off by her father.People take Sabrina seriously when Jamies body is discovered only to be stolen moments later and a waitress Jamie had sought help from the night she died is found dead from bee stings something arranged by the killer. The chief questions Jacob, and finds holes in his story, the main one being Ninas whereabouts. When her father finishes, Sabrina interviews Jacob herself, and goes home, where her father has stationed an officer to guard her. Matt stops by, and while he and Sabrina argue over her visiting Jacob, the white figure knifes the officer and Matt, and abducts Sabrina. The chief realizes something is wrong when he calls Sabrinas cellphone, and a dying Matt answers. ........

Source: Wikipedia