Family picnics should not be like this; bugging devices, men with X-ray eyes. Mary doesn't understand what terrifies Simon, nor the bizarre events of the next six months.
Stephen Moore
as Simon Hulse
Morag Hood
as Mary Hulse
William Morgan Sheppard
as Harry Cowper
Matthew Stradling
as Matthew Hulse
Victoria Goodwin
as Lucy Hulse
Harriet Reynolds
as Cath Cowper
John Franklyn-Robbins
as Shales
Ewan Hooper
as Doctor
Hugh Thomas
as Tennant
Margaret Ford
as Miss Postlethwaite
Peter Guinness
as Police constable
Ralph Lawton
as Police sergeant
