Amanda leidt samen met haar dochter een rustig leven op een Amerikaanse boerderij. Maar als de overblijfselen van haar vervreemde moeder arriveren vanuit Korea, wordt Amanda achtervolgd door de angst om in haar eigen moeder te veranderen.
Nee, helaas is Umma nog niet beschikbaar op Netflix in Nederland.
| Production | Cheng Yang | Executive Producer |
| Production | Yedong Mu | Executive Producer |
| Production | Zhou Tao | Executive Producer |
| Production | André Øvredal | Executive Producer |
| Art | Lee Yong-ok | Production Design |
| Art | Kyle Davio | Set Dresser |
| Costume & Make-Up | Erica D. Schwartz | Costume Supervisor |
| Art | Cliff Collins | Set Dresser |
| Editing | Kevin Greutert | Editor |
| Costume & Make-Up | Zulma Zamora | Key Hair Stylist |
| Art | Demetrios Katsantonis | Set Dresser |
| Camera | Matt Flannery | Director of Photography |
| Costume & Make-Up | Maggie Fung | Makeup Department Head |
| Visual Effects | Andrew Roberts | Visual Effects Supervisor |
| Editing | Louis F. Cioffi | Editor |
| Sound | Marti D. Humphrey | Sound Re-Recording Mixer |
| Sound | Rob Marshall | Sound Re-Recording Mixer |
| Sound | Roque Baños | Original Music Composer |
| Art | W. Haley Ho | Art Direction |
| Costume & Make-Up | Leah Butler | Costume Design |
| Costume & Make-Up | Jose Zamora | Hair Department Head |
| Visual Effects | Maricel Pagulayan | Visual Effects Producer |
| Visual Effects | Christine McDermott | Visual Effects Producer |
| Production | Nancy Nayor | Casting |
| Art | Ksenia Markova | Art Direction |
| Costume & Make-Up | Casey Nguyen | Set Costumer |
| Writing | Iris K. Shim | Writer |
| Crew | Michael Clear | Thanks |
| Costume & Make-Up | Christopher Allen Nelson | Makeup Effects Designer |
| Crew | Linda Jewell | Stunt Double |
| Sound | Biko Gogaladze | Foley Artist |
| Directing | Phil DeSanti | Second Second Assistant Director |
| Visual Effects | Andrew Degryse | VFX Artist |
| Production | Sandra Oh | Executive Producer |
| Production | Zainab Azizi | Producer |
| Production | Sam Raimi | Producer |
| Directing | Iris K. Shim | Director |
| Production | Peter Luo | Executive Producer |
| Production | Marcei A. Brown | Executive Producer |
| Production | Jeanette Volturno | Executive Producer |
| Production | Matt Black | Executive Producer |
