When a body turns up with a crossword clue pinned to it, Cora Felton - aka the famous 'Puzzle Lady' - is thrown into a murder investigation which threatens everything she has worked not very hard for.

When a body turns up with a crossword clue pinned to it, Cora Felton - aka the famous 'Puzzle Lady' - is thrown into a murder investigation which threatens everything she has worked not very hard for.

When a body turns up with a crossword clue pinned to it, Cora Felton - aka the famous 'Puzzle Lady' - is thrown into a murder investigation which threatens everything she has worked not very hard for.

Insider accounts and never-seen-before footage tell the story of the 7/7 bombings on London's transport network in 2005 — and its explosive aftermath.

Insider accounts and never-seen-before footage tell the story of the 7/7 bombings on London's transport network in 2005 — and its explosive aftermath.

Insider accounts and never-seen-before footage tell the story of the 7/7 bombings on London's transport network in 2005 — and its explosive aftermath.

Young woman denied benefits builds illegal drug empire exploiting systemic biases against her cerebral palsy. Sharp-witted Emily Jones uses her overlooked status as cover to sell narcotics undetected.

Young woman denied benefits builds illegal drug empire exploiting systemic biases against her cerebral palsy. Sharp-witted Emily Jones uses her overlooked status as cover to sell narcotics undetected.

Young woman denied benefits builds illegal drug empire exploiting systemic biases against her cerebral palsy. Sharp-witted Emily Jones uses her overlooked status as cover to sell narcotics undetected.

A troubled detective and an enigmatic arson investigator will follow in the footsteps of two serial arsonists.