First broadcast 19th20th March 1998.br br Sam is shaken when she has to look into the death of a very dear friend, Dr. Annabelle Evans, a Cambridge professor.br br br Katharine Schlesinger - Dr. Annabelle Evansbr Emily Ruck-Keene - Claire Evansbr Nicholas Hoult - Tom Evansbr Clarista Hoult - Amy Evansbr Kevin Doyle - Martin Evansbr Amanda Burton - Dr. Sam Ryanbr Anthony Bate - Prof. Leon Foremanbr Alec Newman - Nick Arnoldbr Michael Siberry - Dr. James Reynoldsbr Andrew Scarborough - Marco Rossibr George Jackos - Filippo Rossibr Mark Umbers - Male Studentbr Emily Hamilton - Louise Thomasbr Jason Cheater - Simon Lovitzbr Adam James - Eden Blackmanbr William Armstrong - Trevor Stewartbr Sam Parks - Fred Dalebr Denyse Alexander - Martin's Motherbr Mark Letheren - D.S. Rob Bradleybr Nick Reding - D.I. Michael Connorbr Basil Moss - Chaplainbr Belinda Sinclair - Anne Hortonbr Robert Oates - P.C.