Let's not go into too much details this week in an effort to give spoilers a wide berth. This is what the BBC press information says about Lip Service...

"Felix is pretty certain his wife is up to something with her boss Dmitri, so he decides to hire some help to prove things one way or the other. When professional lip-reader Iris arrives with her powerful binoculars, the couple stake out a hotel bedroom and start to gather their evidence."

The cast features Reece Shearsmith, Steve Pemberton, Sian 'Fleabag' Clifford and Charles Armstrong as Home Secretary. 

The director is Guillem Morales.

The poster illustration is by comedian Poppy Hilstead.

Inside No 9, Lip Service, BBC Two, Monday, May 24, 9.30pm. And then on catch-up here.

Image credit: BBC/Sophie Mutevelian/Amy Tyler

Poster design by Poppy Hilstead