First broadcast 9th/16th March 1984.<br /><br />When a nursing student with a penchant for petty extortion is fatally poisoned during a routine procedure, Commander Dalgliesh and Inspector Massingham must find out which, of the many guilty secrets held by the staff and students at Nightingale House, was a strong enough motive for murder.<br /><br />Roy Marsden - Adam Dalgliesh<br />Joss Ackland - Stephen Courtney-Briggs<br />Sheila Allen - Matron Mary Taylor<br />Liz Fraser - Sister Mavis Gearing<br />Thelma Whiteley - Sister Ethel Brumfett<br />Andree Evans - Sister Hilda Rolfe<br />John Vine - DS John Massingham<br />Rosalyn Elvin - Madeleine Goodall<br />Natalie Ogle - Christine Dakers<br />Judi Maynard - Julia Pardoe<br />Sarah Thomas - Maureen Burt<br />Marcia Tucker - Shirley Dalston<br />John Pennington - Len Morris<br />Nicholas Coppin - Sergeant McPherson<br />Annette Robertson - Morag Smith<br />Graham Faulkner - Staff Nurse<br />Margaret Whiting - Delia Dettinger<br />Eleanor David - Jo Fallon<br />Forbes Collins - Chief Superintendent Bailey<br />Robin Kermode - Arnold Dowson<br />Lennard Pearce - Mr. Coles<br />Ellen Thomas - Staff Nurse<br />Richard Marner - Martin Dettinger<br />Adam Bareham - Gerald Sheldon<br />Buster Merryfield - Sir Miles Honeyman<br />Lynne Pearson - Diane Harper<br />Deborah Findlay - Heather Pearce<br />David Swift - Sir Marcus Cohen<br />Gabrielle Hamilton - B&B Manageress<br />Antony Carrick - Official<br />Kim-Maree Thorpe - Delia Dettinger's maid<br />Peter Schofield - Mr. Harper<br />Paul Greenhalgh - Hospital Administrator<br />Bryan Matheson - Hospital Administrator
