
There is good reason for Sir Douglas Wonderly to summon the family and a lawyer to his stately home. He wants to announce a change in his will. At the same time, a dangerous mental patient escapes from a nearby psychiatric ward. Higgins and Lane are put on his trail. But the arrest of the psychopath proves to be extremely difficult. Shortly thereafter, a mysterious hooded man is on the loose in the castle. He frightens Sir Wonderly so much that the old man suffers a shock and falls into a coma. But that's not all: the will suddenly disappears and two sons are murdered. Sir John personally intervenes to solve the case with Higgins and Lane.
Inspector Higgins

Kate Nelson

Sir John

Rosalind Baffoe
Attorney Ryder

Victoria Wonderley

Vanessa Wonderley

Mrs. Whitehead
Sir Douglas

Policeman

Archibald Smith

Albert Wonderley

Charles

Mabel
Sergeant Spencer

Psychiatrist

Marks

Brandon Jones

William