This article examines the collaborative process involved in campaigning for and representing women appealing murder convictions, highlighting the power of positive collaboration between lawyers, campaigners, frontline experts and the women themselves. Pragna Patel and Harriet Wistrich, who first met while protesting in the early 1990s outside the Royal Courts of Justice in London, have been pivotal figures in this movement. Patel has dedicated four decades to Southall Black Sisters, an organisation advocating for black and minority women. Wistrich co-founded Justice for Women and later specialised in representing women victim-survivors of male violence, challenging discrimination in the criminal justice system. Their collaboration has led to significant precedent-setting murder appeals and reforms in domestic homicide law. This article reflects on their enduring involvement spanning three decades, detailing their efforts in individual cases and legislative reforms. Their approach focuses on obtaining detailed personal accounts from women and building legal strategies around them, aiming to challenge convictions through a feminist lens. Recently, their collaborative efforts prompted the United Kingdom government to commission the Law Commission to review defences in cases of homicide. This underscores their enduring impact in fighting for justice for women who kill their abusive partners and effecting legal change.