Flat superspace with supertorsion

We give a simple proof that a recently suggested theory of space-time as contained in a flat supermanifold with specified torsion in the Fermi variables makes good physical sense. We do this in two parts by showing firstly that supergravity is appropriately contained in such a theory and secondly that the resulting theory, on quantisation, is expected to be renormalisable. We briefly discuss the manner in which matter may be included in this theory.