A mysterious young man settles in a rural English town and immediately starts making a good impression. Before long he has insinuated himself into local life, is married and is serving on the board of the local hospital. Everything seems to be going well for him until a newly appointed consultant psychiatrist shows up and starts asking some probing questions.
| Actor | Role |
|---|---|
 Betta St. JohnSally Sandford | Sally Sandford |
 Alexander KnoxDr. Peter Walton | Dr. Peter Walton |
 Christopher LeeJohn Preston | John Preston |
 Sandra DorneSylvia | Sylvia |
 Patrick HoltSylvia's Husband | Sylvia's Husband |
 John StuartDr. Underwood | Dr. Underwood |
 Bill FraserJoe Newton | Joe Newton |
| PPeter GrantBob Newton | Bob Newton |
 Betty Ann DaviesMrs. Sandford | Mrs. Sandford |
 John LongdenRichard Sandford | Richard Sandford |
| GGabrielle GaySeamstress | Seamstress |
 Guido LorraineHeadwaiter | Headwaiter |
| DDinah Anne RogersPhyllis | Phyllis |
| PPaul BeradiHospital Board Member (uncredited) | Hospital Board Member (uncredited) |
| EErnest BlythHospital Board Member (uncredited) | Hospital Board Member (uncredited) |
 Pat RyanDancer Cutting In (uncredited) | Dancer Cutting In (uncredited) |