“Blackwater Lane” (** out of four) was a meandering horror melodrama about a woman (Minka Kelly) who drives by a stranded motorist who she later learns is murdered and this sets off a chain of events that worry her concerned husband (Dermot Mulroney) and her best friend (Maggie Grace) and lead to an investigation from the police (led by Natalie Simpson) who believe she is connected to the murder. Overlong and overbaked as it goes over overly familiar territory although decent performances and filmmaking help to keep it marginally watchable. Based on B.A. Paris’ novel “The Breakdown”.