Trigonometry review: less a controversial drama about polyamory than a lovely study of relationships

To begin with, you think you know what Trigonometry (BBC Two) is going to be. Theres what we might term a solo sex scene in the first 10 minutes, with Gemma (Thalissa Teixeira) watching porn while waiting for boyfriend Kieran (Gary Carr) to get home. They get… [+1671 chars]Source