Heartbeat S06E13 - Obsessions

Nick comes to an unstable women's rescue when she drunkenly burns down her house after splitting up with her boyfriend. Nick's heroic act has big consequences for him and everyone he holds dear when she falls in love and becomes obsessed with him, and when he rejects her love, she vengefully sets out to ruin his life. Meanwhile, Greengrass enters the tourist business by turning his house into a B&B and providing his guests with a tour of Yorkshire, but his first guests are a bickering couple who draw him into their domestic issues, with dangerous consequences.