 Surgery2015 · Writer | Writer |
 Justine: A Private Affair1995 · Writer | Writer |
 Perry Mason: The Case of the Reckless Romeo1992 · Writer | Writer |
 Perry Mason: The Case of the Glass Coffin1991 · Writer | Writer |
 The Sweet Scent of Death1984 · Writer | Writer |
 Mark of the Devil1984 · Writer | Writer |
 The Watcher in the Woods1980 · Screenplay | Screenplay |
 The Masqueraders1980 · Writer | Writer |
 Escapade1978 · Writer, Producer | Writer, Producer |
 Dial a Deadly Number1975 · Writer | Writer |
 Death in Deep Water1975 · Writer | Writer |
 Kill Two Birds1975 · Writer | Writer |
 Sleepwalker1975 · Writer | Writer |
 Nightmare for a Nightingale1975 · Writer | Writer |
 The Next Victim1975 · Writer | Writer |
 A Midsummer Nightmare1975 · Writer | Writer |
 Murder Motel1975 · Writer | Writer |
 The Next Voice You See1975 · Writer | Writer |
 Good Salary, Prospects, Free Coffin1975 · Writer | Writer |
| IIf It's a Man – Hang Up!1975 · Writer | Writer |
 Won't Write Home, Mom–I'm Dead1975 · Writer | Writer |
 The Crazy Kill1975 · Writer | Writer |
 Where the Action Is1975 · Writer | Writer |
 Nurse Will Make It Better1975 · Writer | Writer |
 Night Is the Time for Killing1975 · Writer | Writer |
 A Killer with Two Faces1974 · Writer | Writer |
 A Killer in Every Corner1974 · Writer | Writer |
 Screamer1974 · Writer | Writer |
 Come Out, Come Out, Wherever You Are1974 · Writer | Writer |
 The Next Scream You Hear1974 · Writer | Writer |
 A Coffin for the Bride1974 · Writer | Writer |
 In the Steps of a Dead Man1974 · Writer | Writer |
 Death to Sister Mary1974 · Writer | Writer |
 I'm the Girl He Wants to Kill1974 · Writer | Writer |
 Sign It Death1974 · Writer | Writer |
 K Is for Killing1974 · Writer | Writer |
 One Deadly Owner1974 · Writer | Writer |
 Kiss Me and Die1974 · Writer | Writer |
 Once the Killing Starts1974 · Writer | Writer |
 The Golden Voyage of Sinbad1973 · Screenplay | Screenplay |
 Ring Once for Death1973 · Writer | Writer |
 Spell of Evil1973 · Writer | Writer |
 The Eyes Have It1973 · Writer | Writer |
 A Place to Die1973 · Writer | Writer |
 The Colour of Blood1973 · Writer | Writer |
 Possession1973 · Writer | Writer |
 Captain Kronos: Vampire Hunter1973 · Writer, Director, Producer | Writer, Director, Producer |
 The Persuaders!1973 · Writer | Writer |
 Someone at the Top of the Stairs1973 · Writer | Writer |
 Lady Killer1973 · Writer | Writer |
 An Echo of Theresa1973 · Writer | Writer |
 The Woman Hunter1972 · Writer | Writer |
 Dr. Jekyll & Sister Hyde1971 · Screenplay, Producer | Screenplay, Producer |
 See No Evil1971 · Writer | Writer |
 And Soon the Darkness1970 · Screenplay, Producer | Screenplay, Producer |
 The Corrupt Ones1967 · Screenplay | Screenplay |
 Curse of the Voodoo1965 · Screenplay | Screenplay |
 Our Man in the Caribbean1964 · Writer | Writer |
 Station Six-Sahara1963 · Screenplay | Screenplay |
 The Silent Invasion1962 · Screenplay | Screenplay |
 Fate Takes a Hand1961 · Writer | Writer |
 Two Wives at One Wedding1961 · Writer | Writer |
 Tarnished Heroes1961 · Writer | Writer |
 Highway to Battle1961 · Writer | Writer |
 Return of a Stranger1961 · Writer | Writer |
 The Tell-Tale Heart1960 · Writer | Writer |
 Identity Unknown1960 · Writer | Writer |
| AAn Honourable Murder1960 · Screenplay | Screenplay |
| TTop Floor Girl1959 · Writer | Writer |
| AA Woman's Temptation1959 · Writer | Writer |
 Mission in Morocco1959 · Screenplay | Screenplay |
 High Jump1959 · Writer | Writer |
 Web of Suspicion1959 · Writer | Writer |
 The Great Van Robbery1959 · Writer | Writer |
 The Secret Man1958 · Screenplay | Screenplay |
| LLinks of Justice1958 · Writer | Writer |
| OOn the Run1958 · Writer | Writer |
 A Woman of Mystery1958 · Screenplay | Screenplay |
 The Depraved1957 · Writer | Writer |
 At the Stroke of Nine1957 · Screenplay | Screenplay |
 The Betrayal1957 · Writer | Writer |
 Operation Murder1957 · Screenplay | Screenplay |
