Ann Collins is een aanstaande moeder, wier ongeboren kind meer teweeg brengt dan de standaard schopjes en zwangerschapspijntjes. In werkelijkheid is de kleine in de baarmoeder een buitenaards wezen die de controle over het lichaam en geest van de moeder wil overnemen.
Nee, helaas is The Stranger Within nog niet beschikbaar op Netflix in Nederland.
| Directing | Lee Philips | Director |
| Writing | Richard Matheson | Short Story |
| Writing | Richard Matheson | Teleplay |
| Production | Neil T. Maffeo | Producer |
| Production | Philip Capice | Executive Producer |
| Production | Lee Rich | Executive Producer |
| Sound | Charles Fox | Original Music Composer |
| Camera | Michael D. Margulies | Director of Photography |
| Editing | Samuel E. Beetley | Editor |
| Production | Jack Roberts | Casting |
| Art | Hilyard M. Brown | Art Direction |
| Art | James Cane | Set Decoration |
| Costume & Make-Up | Patricia Norris | Costume Design |
| Directing | Kurt Neumann | Assistant Director |
| Costume & Make-Up | Karl Herlinger | Makeup Artist |
| Costume & Make-Up | Patricia Miller | Hairstylist |
| Production | Kurt Neumann | Unit Production Manager |
| Directing | Kurt Neumann | First Assistant Director |
| Directing | Robert Bennett Steinhauer | Second Assistant Director |
| Art | Al Legget | Property Master |
| Art | Al Rohm | Construction Coordinator |
| Sound | Victor Guarnier | Sound Effects Editor |
| Sound | Dwight Mobley | Sound Director |
| Sound | Bill Wistrom | Sound Effects Editor |
| Camera | Frank Beascoechea | Camera Operator |
| Camera | Jerry Deats | Key Grip |
| Lighting | Gary Tandrow | Gaffer |
| Costume & Make-Up | Patricia Norris | Costumer |
| Editing | Gene Fowler Jr. | Editorial Manager |
| Sound | Ken Runyon | Music Editor |
| Directing | Adell Bravos | Script Supervisor |
| Crew | James R. White | Transportation Coordinator |
| Production | Julie Waxman | Production Assistant |
