When many people struggle to maintain one relationship, why do some people enter into multiple simultaneous marriages? Lucy Ash speaks to polygamists around the world to find out why they were drawn to these complex arrangements and how they manage them. Lucy hears about rotas, hierarchies and curfews from the stars of a popular South African reality TV show about a businessman, his four wives and their ten children. The creator of a dating website in Gaza explains why many of his clients are looking for second or third wives. A woman who left her Mormon plural marriage in the American state of Utah tells how having to share her husband with a sister wife had a devastating impact on her mental health. What about polyandry – one woman marrying multiple men? Anthropologist Katie Starkweather explains why some societies have favoured it.

(Photo: Models on wedding cake, Photo credit: Shutterstock)