Matthew Bennell notices that several of his friends are complaining that their close relatives are in some way different. When questioned later they themselves seem changed, as they deny everything or make lame excuses. As the invaders increase in number they become more open and Bennell, who has by now witnessed an attempted 'replacement', realises that he and his friends must escape or suffer the same fate.
You can now watch Invasion of the Body Snatchers online on the following streaming providers in the United States.
| Directing | Philip Kaufman | Director |
| Sound | Ben Burtt | Sound Effects Designer |
| Camera | Michael Chapman | Director of Photography |
| Art | Charles Rosen | Production Design |
| Crew | David R. Ellis | Stunt Coordinator |
| Art | Doug von Koss | Set Decoration |
| Costume & Make-Up | Aggie Guerard Rodgers | Costume Design |
| Writing | W.D. Richter | Screenplay |
| Sound | John Nutt | Sound Editor |
| Production | Mary Goldberg | Casting |
| Writing | Jack Finney | Novel |
| Production | Robert H. Solo | Producer |
| Editing | Douglas Stewart | Editor |
| Sound | Bonnie Koehler | Supervising Sound Editor |
| Sound | Denny Zeitlin | Music |
| Sound | Art Rochester | Sound |
| Costume & Make-Up | Thomas R. Burman | Makeup Artist |
| Production | Alan Levine | Production Manager |
| Costume & Make-Up | Edie Panda | Hairstylist |
| Costume & Make-Up | Bob Westmoreland | Makeup Artist |
| Costume & Make-Up | Agnes Anne Rogers | Costume Design |
| Costume & Make-Up | Edouard F. Henriques | Makeup Artist |
| Costume & Make-Up | Mary Elizabeth Still | Costumer |
| Directing | Alice Tompkins | Script Supervisor |
| Crew | Russel Hessey | Special Effects |
| Camera | Louis Niemeyer | First Assistant Camera |
| Crew | Dell Rheaume | Special Effects |
