Invisible by Night is a gently interactive video installation which responds to touch and presents a projection of a life–sized woman whose eternal pacing can be quietly interrupted by the viewer.

Commissioned originally for The Melbourne Festival 2004, in response to the layered history of the site of Melbourne's first morgue, Wallworth chose to create a piece about the process of grief and loss, and the transient nature of compassion.

Invisible by Night builds gestural mirroring into its interactive structure to create powerful emotional connections with the viewer. The piece signals our neglect of ‘histories of site’ through our more immediate lack of compassion for those who suffer amongst us. Its attention to the transient beauty of compassion and interaction traverses boundaries of urban community and history.