On Start the Week, Andrew Marr explores where truth ends and invention begins in the story of the self. The theatre director Robert Lepage has spent decades creating other worlds on stage; now his one-man show recreates his childhood home in 1960s Quebec, with truth at the mercy of memory. Rebecca Stott has written the story of her family that her father left unfinished, including the Christian cult that inspired their devotion, until doubt led them astray. Miranda Doyle casts doubt on the veracity of memoir itself, by writing a series of lies to get at the truth of her family story. Andrew O'Hagan has examined three lives existing more fully online than offline: the Wikileaks founder Julian Assange; the fabled inventor of Bitcoin, Satoshi Nakamoto and 'Ronald Pinn'- an experiment in identity theft that disrupts the very notion of the self. Producer: Katy Hickman

Image: Robert Lepage on stage in 887 by Ex Machina/ Robert Lepage Photographer: Eric Labbé.