How Safe Is Your House? follows Mark Clemmit and Mark Millar as they hunt for builders whose shoddy work has left houses in a lethal condition. Angellica Bell is on the frontline with specialist agencies working to keep homes safe.
The team are on the trail of a builder who turned a semi in Swansea into a lethal building site. Angellica joins an investigation targeting a criminal bringing dangerous medicines into homes all over the country.