Alison Peters has always done everything right but finds her life in turmoil as a lawyer stuck working at a grocery store job. Desperate for cash, she rents her basement on MiCasaSuCasa.com and gets a response from James Brewer who explains that he and his wife have recently split. At work, Alison and her friend Sarah, deal with a boss, Brandon, who's been harassing Alison. When Brandon is murdered, the police are suspicious of her. As romance starts to bloom between Alison and James, more people in her life begin disappearing.
Unfortunately the movie The Killer Downstairs is not yet available on HBO Max.
| Directing | Tony Dean Smith | Director |
| Writing | Adam Hussein | Writer |
| Costume & Make-Up | Elizabeth McLeod | Makeup Department Head |
| Camera | Tyler Olchowy | Second Assistant Camera |
| Camera | Mike Kam | Director of Photography |
| Art | Tim Lanham | Set Decoration |
| Directing | Troy Scott | First Assistant Director |
| Sound | Dave Goetter | ADR Mixer |
| Sound | Andy Forsberg | Original Music Composer |
| Sound | Kevin Blumenfeld | Original Music Composer |
| Costume & Make-Up | Stacey Bradder | Costume Design |
| Costume & Make-Up | Beverly Hoy | Hair Department Head |
| Camera | Laurent Danis | First Assistant "A" Camera |
| Editing | Seán Travers | Colorist |
| Production | Judy Lee | Casting |
| Sound | Gregorio Gómez | Sound Effects Editor |
| Sound | David Daoud | Boom Operator |
| Camera | Mitchell Rowland | Key Grip |
| Art | Natália Peixoto | Assistant Set Decoration |
| Crew | Anna Christina Waters | Generator Operator |
| Writing | Tony Dean Smith | Writer |
| Production | Oliver De Caigny | Producer |
| Production | Timothy O. Johnson | Executive Producer |
| Camera | Titouan Fournier | First Assistant Camera |
| Directing | Robyn Ludwig | Script Supervisor |
| Sound | Christopher O'Brien | Sound Mixer |
| Sound | David Chen | Foley Editor |
| Editing | Jason Nielsen | Editor |
| Sound | Aaron Olson | Dialogue Editor |
| Crew | Chad Sayn | Stunt Coordinator |
