An imagined trial of a man who, in 1974 London, is thought to have killed a woman he mistook for his wife in order to regain custody of his children. He disappeared the day after the killing and was never found.

Julian Wadham
as Lord Lucan

Lynsey Baxter
as Lady Lucan

Robin Ellis
as Sir Charles Moore

James Faulkner
as Sir James Hallows

Anthony Stewart Head
as Dominic Elwes

Andrew Seear
as Greville Howard

Sean Arnold
as John Aspinal

Rowland Davies
as Charles Benson

Osmund Bullock
as Bill Shand-Kydd

Rebecca Oliver
as Lady Frances Bingham