Within the walls of an interrogation room and with time running out, London investigators go after three suspects, each accused of a grievous crime.

Astimerunsout,interrogatorsturnuptheheatonastone-faceddoctorsuspectedofsexuallyassaultingandslayinghisteenagestepdaughter.

Registrar Kate Dickinson tries to balance her personal life with the daily dramas of births, deaths and marriages and the impact they have upon her and her staff at the local Registry Office in Leeds.