"It moves through a time of inexplicable stresses that many experience, but few of us can comprehend - substance abuse to dull the pain of betrayal, loneliness, fear of the unknown or of the future," founder of Mothers Matter Chloe Wright told the Herald.
Near the end of the film, the woman's father finds a note saying "I'm sorry", left next to her baby. She is gone and her heartbroken father petitions for change.
The film ends with the words "We approached the Government for help. They turned us away."
Politicians - including Health Minister Andrew Little, Minister of Women Jan Tinetti, Act leader David Seymour, National MPs Simon Bridges and Louise Upston - were left stunned.
"The story in this film, I saw it every day," midwife Tish Tahia told them.
Tahia, an advocate for Mothers Matter who has worked at one of the biggest District Health Boards in the country for 22 year, said the maternal care system was broken.
"But I now see hope," she said.
The nationwide Mothers Matter campaign is protesting against women being discharged from hospital after giving birth without any support, a postcode lottery for maternal care, lack of wraparound services for struggling mums, and cultural and economic barriers for new mums to get help.
About maternal suicide in New Zealand
• Every year at least 10 women are lost to maternal suicide in New Zealand - and experts say that's the "tip of the iceberg" as many go unreported. Māori and Pasifika are far less likely to report postnatal depression.
• One in seven new mums suffer postnatal depression after giving birth.
• The reported rate of maternal suicide in New Zealand is five times higher per capita than that of the UK, with Māori women overrepresented.
• On average a child dies every five weeks as a result of violence in New Zealand.
Looking for support? It's available
Call or text 1737 any time for support from a trained counsellor
Call PlunketLine 24/7 on 0800 933 922
Depression helpline: Freephone 0800 111 757
Healthline: 0800 611 116 (available 24 hours, 7 days a week and free to callers throughout New Zealand, including from a mobile phone)
Lifeline: 0800 543 35
Samaritans: 0800 726 666