British tv shows thriller genre

The Ipcress File

Keeping Faith

Black Work

The Poison Tree

Messiah

Penance

The Doll Factory

Our House

Y Golau

Before We Die

The Inheritance

Am I Being Unreasonable?

Baghdad Central

Eric

The Enfield Poltergeist

The Holiday

The Couple Next Door

Undercover

The Secret Agent

Mayday

An Inspector Calls

For Her Sins

After the Flood

Rebel Cheer Squad - A Get Even Series

Midwinter of the Spirit

A Town Called Malice

Rules of the Game

Red Eye

Malpractice

Tales of the Unexpected

Cold Call

Ice (2011)

Sticks and Stones

Ridley Road

Without Sin

Paula

Truelove

Viewpoint

The Reckoning

Six Four

Payback

Murderland

Smiley's People

The Following Events Are Based on a Pack of Lies

Undeniable

Action Team

Edge of Darkness

Flood