From Amazon.co.uk:
The Incredible Radical Liberal Jumpers are a team of acrobatic professors of philosophy, whose absurd gymnastic displays reflect a bewildering world where logic has confounded belief in moral absolutes. In this dark, exuberant comedy, Stoppard brilliantly parodies the philosophy lecture, the detective thriller, the comedy of manners and the Whitehall farce, to follow a philosopher's doomed flight to prove the existence of God in the face of an indifferent universe.

Left in the bookcase in the corridor.