Ever restless, Frank abandoned photography for film in the early 1970s only to return to it a few years later in the wake of great personal tragedy. His daughter, Andrea, was killed, aged 20, in a plane crash in Guatemala in 1974. She had appeared alongside her brother Pablo in Frank’s confessional 1969 film Conversations in Vermont , two children of unconventional parents stranded in a progressive boarding school. (Pablo took his own life in 1994 after a long struggle with schizophrenia.) It is Andrea who haunts the photographs that Frank made in the 70s when he remade himself once again as an artist, often scratching or writing on the surface of his prints and Polaroids.