Prologue: The story of nature taunting us -- The case of the experiment with two holes : Richard Feynman explains the central mystery -- What does it mean "to be"? : the road to reality, from Copenhagen to Brussels -- Between reality and perception : doing the double slit, one photon at a time -- From sacred texts : revelations about spooky action at a distance -- To erase or not to erase : mountaintop experiments take us to the edge -- Bohmian rhapsody : obvious ontology evolving the obvious way -- Gravity kills the quantum cat? : the case for adding spacetime into the mix -- Healing an ugly scar : the many worlds medicine -- Epilogue: Ways of looking at the same thing?