Notes On A Scandal

"People have always trusted me with their secrets. But who do I trust with mine?"
It's a British film based on Zoe Heller's story - "Notes On A Scandal" about strange friedship between two women and affair with student.
Barbara Covett teaches history at secondary school in London. When Sheba Hart starts work in the same school she believes that this new teacher can be her best friend. One day Barbara discovers that Sheba is having an affair with young student - Steven Connolly.
If you want more... watch the film;p