Times Online featured this as one of "The 100 best films of 2007."
Gillian Anderson was attracted to the material because she found it alarmingly dark. Following The X-Files (1993), she was bombarded with supernatural and costume dramas, so the allure of a contemporary thriller with something to say about retribution proved very tempting.
The film was partly inspired by writer-director Dan Reed. He had interrupted a rape-in-progress years earlier, and said the incident gave him nightmares.