Sex, spas, sleaze: what Orchard Road of Singapore hides in plain sight

It is evening on a sultry Sunday and a meandering crowd of families, tourists and food delivery riders jostle for space on the footpath outside Concorde Hotel. Yet all is still and silent inside the building’s shopping wing, except for two units offering massage and facial services.
In one of them, located beside the security desk, a middle-aged lady wearing a lime green halter top and beige miniskirt performs a series of jumping jacks in full view of passers-by. Her eyes dart…