Nearly two years after having gone amiss in Africa, renowned anthropologist Dr. Ethan Powell is caught committing a crime and subsequently imprisoned in a Florida mental institution, where aspiring psychiatrist Dr. Theo Calder takes over his important case. Dr. Powell, who has been with a group of gorillas during all that time, is not talking at all and seems to be living in a dreamworld. Very slowly, Dr. Calder manages to reach Ethan Powell and starts finding out why Ethan killed two of the...