In nineteenth century Yorkshire wealthy orphan Anne Lister lives with an aunt and uncle, anxious for her to marry well and blissfully - unaware that she is a lesbian. Anne is recording her thoughts and exploits in a coded diary. When her lover Mariana Belcombe makes a marriage of convenience to rich old Charles Lawton she feels betrayed and, although Mariana visits her,the relationship is going nowhere. Helped by old flame Tib she makes a play for innocent Miss Browne but sees she is barking up the wrong tree and diverts herself by renovating the family hall. A drunken Tib almost exposes her secret and scornful mine-owner Christopher Rawson, whose marriage proposal she rejects, tells her that her sexuality is a subject of local gossip....