居住在盐湖城的Bill Henrickson是一位摩门教徒。正常家庭所有的烦恼与琐碎，在这里，统统变为3倍－－－因为Bill拥有3个妻子，同时也有三幢相邻的房子，三个家庭，以及7个子女。三位美丽年轻的妻子每夜轮流享用自己的丈夫，而一起掌管家庭收支。可是却没人知道他们的丈夫正处在金融危机之中，这个庞大的家庭正在一步步走向崩塌。。。

From creators Mark V. Olsen and Will Scheffer comes Big Love, the story of a Mormon man, Bill Henrickson, living in Salt Lake City with his three wives, three houses, and three families. As if normal family life isn't enough trouble, Bill Henrickson (Bill Paxton, Twister, Thunderbirds) has everything in triple: three wives, three houses, three families. Bill's first and only legal wife is Barb (Jeanne Tripplehorn, Word of Honor) but he also shares the bedroom with middle wife Nicki (Chloe Sevigny, Boys Don't Cry, Dogville) and youngest wife Margene (Ginnifer Goodwin, Ed, Mona Lisa Smile). Bill also has three new adjoining houses, seven kids, and a booming hardware business. The series kicks in as Bill receives troublesome news about his father (Bruce Dern) who lives in a fundamentalist Mormon community in rural Utah.