A gutsy dame, a surly smuggler, a deep and sinister river. It's February of 1928 - late summer in the Amazon. Prudence McMarion, a film editor at Walter Disney's animation studio in Los Angeles, has taken a leave of absence to travel deep into the Amazon Rainforest with her best friend, Brazilian native Eleanor Martins, to make an independent movie in Eleanor's home village. Along the way, they meet members of the seedy, disreputable "expat community" there. None are to be trusted.