When linguistics professor Henry Higgins boasts that he can pass off Cockney flower girl Eliza Doolittle as a princess with only six months' training, Colonel George Pickering takes him up on the bet. Eliza moves into Higgins's home and begins her rigorous training after the professor comes to a financial agreement with her dustman father, Alfred. But the plucky young woman is not the only one undergoing a transformation.

Stammer School follows a cast of struggling stammerers as they enrol in a course that aims to help them finally find their voices. Stammer School features Musharaf Asghar – affectionately known as Mushy – from Educating Yorkshire. He found a place in the hearts of the nation as millions tuned in to watch him learn methods to overcome his crippling stammer and achieve the C grade he needed in his English GCSE. Although Mushy’s stammer has improved, he is often left speechless still. With the help of an intensive programme, led by other stutterers, Stammer School will follow Mushy and others as they attempt to overcome this huge stumbling block in their lives.