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.
as Inspector Higgins
as Kate Nelson
as Sir John
as Rosalind Baffoe
as Attorney Ryder
as Victoria Wonderley
as Vanessa Wonderley
as Mrs. Whitehead
as Sir Douglas
as Policeman
as Archibald Smith
as Albert Wonderley
as Charles
as Mabel
as Sergeant Spencer
as Psychiatrist
as Marks
as Brandon Jones
as William
