As time runs out, interrogators turn up the heat on a stone-faced doctor suspected of sexually assaulting and slaying his teenage stepdaughter.

With a shadowy colleague looking on, the team starts poking holes in the evolving story of a combative suspect accused of poisoning her brother-in-law.

The team badgers a reticent truck driver to locate an abandoned trailer full of immigrants, but a new interrogator’s poor decision jeopardizes it all.

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