Greg Sanderson is helping his wife, Jan, to recover from a nervous breakdown and revive their strained marriage. Their privacy is interrupted by the arrival of Greg's stunning and mysterious sister, Laura. Jan's paranoia deepens as she suspects that Greg's and her sister's relationship is too close. In her desperation, she confides her fears to the landlord but his weird reaction only creates more confusion.
| Camera | George Hosek | Director of Photography |
| Art | Carlos Barbosa | Production Design |
| Production | Barbara Javitz | Executive In Charge Of Production |
| Writing | Peter Culley | Screenplay |
| Production | Michael Canale | Producer |
| Directing | Viktor Kulle | Director |
| Editing | Jack Tucker | Editor |
| Production | Eric M. Breiman | Line Producer |
| Production | Peter Colley | Associate Producer |
| Production | Naofumi Okamoto | Executive Producer |
| Production | Steven Paul | Producer |
| Production | Gary Preisler | Producer |
| Production | Michael Scordino | Executive Producer |
| Sound | Robert J. Walsh | Original Music Composer |
| Production | Carolyn Long | Casting |
| Art | Richard Brunton | Art Direction |
| Art | Ellen Brill | Set Decoration |
| Costume & Make-Up | Deborah Slate | Costume Design |
| Costume & Make-Up | Desne J. Holland | Key Makeup Artist |
| Costume & Make-Up | Inger Ostrom | Hairstylist |
| Costume & Make-Up | Inger Ostrom | Makeup Artist |
| Production | Barry L. Collier | Executive Producer |
