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.
| Camera | George Hosek | Director of Photography |
| Production | Barbara Javitz | Executive In Charge Of Production |
| Writing | Peter Culley | Screenplay |
| Directing | Viktor Kulle | Director |
| Art | Carlos Barbosa | Production Design |
| Production | Michael Canale | Producer |
| Production | Barry L. Collier | Executive Producer |
| Editing | Jack Tucker | Editor |
| Costume & Make-Up | Inger Ostrom | Hairstylist |
| Production | Naofumi Okamoto | Executive Producer |
| Production | Gary Preisler | Producer |
| Production | Michael Scordino | Executive Producer |
| Costume & Make-Up | Deborah Slate | Costume Design |
| Costume & Make-Up | Desne J. Holland | Key Makeup Artist |
| Art | Ellen Brill | Set Decoration |
| Production | Steven Paul | Producer |
| Production | Eric M. Breiman | Line Producer |
| Production | Carolyn Long | Casting |
| Art | Richard Brunton | Art Direction |
| Production | Peter Colley | Associate Producer |
| Sound | Robert J. Walsh | Original Music Composer |
| Costume & Make-Up | Inger Ostrom | Makeup Artist |
