In Young Boys, Marlene Dumas's line-up of ghostly lads is stark and oppressed against the ominous background, trailing off in the distance into mere sketchy traces of suggestion. It's this suggestion that Dumas does best: a void of colour, a bleeding line, she creates a subtle, unnerving, perversity from an unabashed simplicity. This is painting with no frills: full on, with nowhere to hide.