After a bumpy start to their relationship, Will and journalist Ellie go on their first date with a trip to the \u2018flicks\u2019. But a scream from the projection booth cuts the romance short as they discover a brutal murder has taken place within the cinema. Geordie arrives to investigate and discovers movie star connections, oddball employees and Cambridge\u2019s own answer to Marilyn Monroe. All that, plus a link to the Asian subcontinent - because just like in any good film-noir, a shadowy figure emerges from Jack Chapman\u2019s past, and refuses to retreat without causing a stir. But as Mrs C is drawn into the murder investigation, is she ready to hear the truth about her husband? Cathy\u2019s mum Diana takes the kids out for the day, which ends up worrying Cathy far more than it should. Will also has his hands full with Matthew, the boy from the boxing gym who he\u2019s trying to set back on the straight and narrow. But Matthew is proving a tricky convert to the side of the angels, and even disrupts Will and Ellie\u2019s first romantic moments at the cinema. Is this one relationship that\u2019s going to end up on the cutting room floor? Grantchester - Friday at 9.00pm on ITV.