A nail biter is unfolding in a polarised Peru. The hard right's Keiko Fujimori, daughter of a jailed former president, is facing off against a populist political novice, the far left's Pedro Castillo. Which way for a nation beset by corruption and mismanagement, where Covid-19 has only accentuated the inequality gap? Will the result clear the air in a Peru that has been through five heads of state in five years?