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.
Unfortunately the movie Illusions is not yet available on HBO Max.
| Writing | Peter Culley | Screenplay |
| Directing | Viktor Kulle | Director |
| Camera | George Hosek | Director of Photography |
| Art | Carlos Barbosa | Production Design |
| Production | Barbara Javitz | Executive In Charge Of Production |
| Production | Michael Canale | Producer |
| Editing | Jack Tucker | Editor |
| Art | Ellen Brill | Set Decoration |
| Production | Naofumi Okamoto | Executive Producer |
| Sound | Robert J. Walsh | Original Music Composer |
| Costume & Make-Up | Desne J. Holland | Key Makeup Artist |
| Costume & Make-Up | Deborah Slate | Costume Design |
| Art | Richard Brunton | Art Direction |
| Production | Eric M. Breiman | Line Producer |
| Production | Gary Preisler | Producer |
| Costume & Make-Up | Inger Ostrom | Makeup Artist |
| Production | Peter Colley | Associate Producer |
| Production | Carolyn Long | Casting |
| Costume & Make-Up | Inger Ostrom | Hairstylist |
| Production | Steven Paul | Producer |
| Production | Michael Scordino | Executive Producer |
| Production | Barry L. Collier | Executive Producer |
