Dodge’s To Catch a Thief does not have a picnic episode.
See David Dodge. To Catch a Thief. New York: Random House, 1952; Alfred Hitchcock. To Catch a Thief (1955). The screenplay by John Michael Hayes is based on David Dodge’s novel (1952), Hilary Radner. “To Catch a Thief: Light Reading on a Dark Topic,” in Hitchcock at the Source: The Auteur as Adapter, edited by R. Barton Palmer and David Boyd. Albany, New York: SUNY Press, 2013; David-Dodge Companion, com