Widowed Nicky Laker, a doctor at a research lab which uses animal testing, asks Peter to defend her daughter Donna, who has vandalised the unit to expose it and lose her mother her job.

Cast: Stephen Fry, Karl Davies, Gerard Horan, Celia Imrie, Hermione Norris, Jaye Griffiths, John Thomson, Anna Massey, Larissa Wilson, Kate O'Flynn, Thomas-James Fisher, Adrian Hood, Paul Kaye, Phyllida Law, Tony Slattery