By Rebecca Lenkiewicz. A series of late night thrillers, each connected by a mysterious mobile phone. In Rebecca Lenkiewicz's drama, an insomniac mathematician is forced to turn hero when he answers a phone belonging to a prostitute. Abraham . . . . . Toby Jones Sybil . . . . . Niamh Cusack Kate . . . . . Sarah Goldberg June . . . . . Kate Williams Max . . . . . Adeel Akhtar Manager . . . . . Christine Kavanagh Directed by Sasha Yevtushenko.