The Promise

BBC4, 9pm & 9.55pm

The makers of the brilliant French crime drama Spiral are behind this new six-part series, which was a huge hit in its native country. It takes place across two different timelines – in 1999, embittered cop Pierre (Olivier Marchal) hunts for a kidnapped 11-yearold girl; 20 years later, his daughter Sarah (Sofia Essaïdi) tackles a scarily similar case. ★★★★