Like her directorial debut Twelve Nights, Twelve Days depicts 12 scenes of a tumultuous marriage, from its blissful beginning through its bitter collapse. On day one, Jeannie and Simon seem to have the makings of a perfect marriage, but the following 11 vignettes reveal the various conflicts, both big and small, that slowly eat away at their bond. Love may build a marriage, but Twelve Days shows that reality can just as easily shatter it.
| Directing | Aubrey Lam Oi-Wah | Director |
| Production | Ng Kin-hung | Producer |
| Writing | Aubrey Lam Oi-Wah | Screenplay |
| Camera | Jam Yau Chung-Yip | Director of Photography |
| Art | Angela Chiu Dan-Kei | Art Direction |
| Costume & Make-Up | Cindy Cheung Fong-Dai | Costume Designer |
| Editing | Matthew Hui Wai-Kit | Editor |