A homeless man is found crushed to death under a floating wall at a modern art gallery. When the death is declared a burglary gone wrong, a doubtful Nicola and Charlie canvas the suspects. It's no coincidence the man caused a hoo-hah at the launch of the gallery's lucrative "Audacity in Art" Award and then died that night. What else did he do, or what else did he know? And who's in the frame? Through bat guavo, an artistic anagram, and replica brush strokes, Nicola and Charlie unearth a killer who won't draw the line at murder.