Atmospheric drama from BBC Radio 4 with bonus scenes for BBC Sounds, featuring original music by Imelda May.

Have you ever wondered where the term 'gaslighting' comes from? Find out in this dark reimagining of the classic 1938 stage thriller by Patrick Hamilton.

Jonathan Holloway's modern adaptation is set in the present, with a deliciously vintage feel.

Jack Manningham has used his wife’s recently inherited money to buy a huge period property - a former bell foundry - which they will renovate. They occupy a small habitable part of the ground floor and basement. This previously neglected ramshackle building is lit by gas, as it was in Victorian times.

In episode four, the light is still playing tricks and Bella is about to meet an interesting stranger.

Cast in order of appearance:

Tippi Griffiths ..... Lacey Turner

Written by Jonathan Holloway, based on the original play by Patrick Hamilton

Music: Imelda May with Tim Bran

Produced by Sally Harrison with James Purefoy

A Woolyback production in association with Darling Pictures, for BBC Radio 4 and BBC Sounds