A shy mail clerk becomes embroiled in the investigation of the murder of a man involved with the beautiful neighbor he is obsessed with.
| Actor | Role |
|---|---|
 Deborah SheltonLeanne Dunaway | Leanne Dunaway |
 Louise FletcherMiss Taylor | Miss Taylor |
 Ned BeattySgt. Logan | Sgt. Logan |
 Lenny Von DohlenWilliam Dalton | William Dalton |
 Robert VaughnMr. X | Mr. X |
| JJoe BanksInspector | Inspector |
| GGerard EnderOfficer Cooper | Officer Cooper |
| TTom Sean FoleyGregg Howard | Gregg Howard |
 Stoney JacksonTony Davis | Tony Davis |
| LLee LivelyDr. Segers | Dr. Segers |
 Catherine McGoohanGloria Byers | Gloria Byers |
| RRichard RhodesPoliceman | Policeman |
| DDan SmithOffice Worker | Office Worker |
| MMary JeffersonMiss Sloan | Miss Sloan |
| CCharles AmbroseOffice Worker | Office Worker |
| MMichael BrownOffice Worker | Office Worker |
| JJulia DeaneReceptionist (as Julia Howard) | Receptionist (as Julia Howard) |
| MMimi EismanOffice Worker | Office Worker |
| SShirley HallOffice Worker | Office Worker |
 Laura LeeOffice Worker | Office Worker |
| AAnn DormanOffice Worker | Office Worker |
| RRodney SuiterOffice Worker | Office Worker |