For most of her life, filmmaker Lynne Sachs has collected business cards that strangers pulled from their wallets and placed in her hand. Now in this digital era, being in the same space with others happens less and less. Sachs selects seven cards from hundreds and throws herself into finding out how and why certain people left an imprint on her consciousness. When she is able, she embraces clues and seeks out reunions. But when there is no trace, she gambles with imaginary histories and futures. A lifetime of tactile, face-to-face encounters reminds her of identities passed from hand to hand.