It is Harvard in the early 1960s. Just off campus, Dr Timothy Leary plays host for his PhD students, laying on a spread of cocktails, pizza and LSD. Among the guests is Fitzhugh Loney, a psychology student, and his librarian wife Joanie. Married young, and both diligently and unglamorously toiling to support their son, they are not the sort of people one would expect to be seduced by the nascent drug culture. But their nights on LSD prove so extraordinary - so revelatory, so earth-shattering, so