BBC’s latest series starring Martin Freeman follows Chris Carson as he tackles five nights as a response officer.
Whilst trying to keep his head above water both personally and professionally, Chris is forced to take on a new work partner, Rachel. Both soon discover that survival in this high pressure, relentless, night-time world will depend on them either helping or destroying each other.
As well as his mental health, his marriage is not doing well. Chris is in real danger of being sucked under.