Dr Martin Ellingham (Martin Clunes), a brilliant and successful vascular surgeon at Imperial College London, develops haemophobia – a fear of blood, forcing him to stop practising surgery. He obtains a post as the sole general practitioner (GP) in the sleepy Cornish village of Portwenn, where he had spent childhood holidays with his Aunt Joan (Stephanie Cole), who owns a local farm. Upon arriving in Portwenn – where, to his frustration, the locals address him as “Doc Martin” – he finds the surgery in chaos and inherits an incompetent receptionist, Elaine Denham (Lucy Punch). In series 2–4, she is replaced by Pauline Lamb (Katherine Parkinson), a new receptionist, and later also a phlebotomist. In Series 5, Morwenna Newcross (Jessica Ransom) takes up the post.