  We demonstrate bending of light on the same side of the normal in a free
standing corrugated metal film under bi-directional illumination. Coherent
perfect absorption (CPA) is exploited to suppress the specular zeroth order
leading to effective back-bending of light into the `-1' order, while the `+1'
order is resonant with the surface mode. The effect is shown to be phase
sensitive yielding CPA and superscattering in the same geometry.
