Cassie Grant (Christina Ricci) is a young girl from the United States who is wandering through England on foot. On her way to Ashby Wake Cassie is hit by a car. The driver of the car, Mrs Marion Kirkman (Kerry Fox), immediately calls an ambulance. During an examination at the local hospital the doctor comes to the conclusion that Cassie only has some scratches and not even a concussion, but Cassie has lost her memory due to the accident. She only knows her name and mother country, but she does not know which town she comes from, who her family is and why she is in England.
| Writing | Anthony Horowitz | Screenplay |
| Sound | Anne Dudley | Original Music Composer |
| Editing | Masahiro Hirakubo | Editor |
| Directing | Brian Gilbert | Director |
| Production | Peter Samuelson | Producer |
| Production | Marc Samuelson | Producer |
| Production | Pippa Cross | Producer |
| Camera | Martin Fuhrer | Director of Photography |
| Crew | Lee Sheward | Stunt Coordinator |
| Camera | Chris Plevin | Camera Operator |
| Production | Donald Paul Pemrick | Casting |
| Production | Terri Taylor | Casting |
| Costume & Make-Up | Nic Ede | Costume Design |
| Camera | Adam Dale | Camera Operator |
| Sound | Stefan Henrix | Supervising Sound Editor |
| Lighting | Stewart Hadley | Gaffer |
| Crew | Gary Skull | Transportation Coordinator |
| Production | Clive Miles | Location Manager |
| Visual Effects | Ed Hawkins | Visual Effects Supervisor |
| Camera | Stuart Howell | Steadicam Operator |
| Camera | Peter Versey | Camera Operator |
| Costume & Make-Up | Camilla Fiddian-Green | Costume Supervisor |
| Visual Effects | Gregory Salter | Visual Effects Supervisor |
| Lighting | Roy Furness | Rigging Gaffer |
| Directing | Sarah Garner | Script Supervisor |
| Production | Emma Pill | Location Manager |
| Art | Caroline Amies | Production Design |
| Sound | Andy Kennedy | Sound Effects Editor |
| Costume & Make-Up | Julie Wright | Makeup Artist |
| Sound | Mark Taylor | Sound Re-Recording Mixer |
| Art | Emily Lutyens | Art Department Assistant |
| Crew | Graham Smith | Unit Publicist |
| Art | Guy Bradley | Assistant Art Director |
| Art | Luke Furlonger | Sculptor |
| Sound | Alex Hudd | Dolby Consultant |
| Visual Effects | Stefan Drury | Visual Effects Producer |
| Camera | Philip Sindall | Camera Operator |
| Crew | Julia Jones | Unit Publicist |
| Sound | Mike Dowson | Sound Re-Recording Mixer |
| Editing | Neil Williams | First Assistant Editor |
| Art | Frank Walsh | Art Direction |
| Costume & Make-Up | Nikita Rae | Hairstylist |
| Camera | Liam Daniel | Still Photographer |
| Crew | Albert Bailey | Sound Recordist |
| Art | Stelios Polychronakis | Assistant Art Director |
| Sound | Andie Derrick | Foley |
| Crew | Jo McLaren | Stunts |
| Sound | Peter Burgis | Foley Artist |
| Crew | Lucy Allen | Stunt Double |
| Production | James Reggel | Assistant Accountant |
