Four office workers, one unforgettable weekend - this shimmering lost German classic unveils the hidden lives inside every employee.

Welcome to the Wellis Corporation. Twenty-three storeys of shimmering glass cubicles, rattling typewriters, spiraling corridors: a corporate kingdom with its own neon light.

Across the glittering panes, the acrobatic window cleaner swoops and dives, or pauses, still as a gargoyle, seeing things that nobody else sees.

Over one weekend, we follow four employees into their private worlds. An ageing secretary; a translator in a mid-life-crisis; a once-glamorous typist; and a lovelorn trainee.

Together, they reveal the illusions we live by - in the workplace, in the home and in our own mind's eye.

Lost for decades since it was first published in Germany in 1959, introduced by Megan Nolan and in a hypnotic new translation by Rob Madole, this crystalline debut novel by a pioneering female writer rewrites German literary history.