The Last Wave

The Last Wave released as Black Rain in the United States is an Australian mystery drama film from 1977, directed by Peter Weir. It is about a white solicitor in Sydney whose seemingly normal life is disrupted after he takes on a murder case and discovers that he shares a strange, mystical connection with the small group of local Australian Aborigines accused of the crime.

During one of these freak rainstorms in Sydney, an altercation occurs among a group of Aborigines in a pub, which results in the mysterious death of one of them. At the coroners inquest, the death is ruled a homicide and four men are accused of murder. Through the Australian Legal Aid system, David Burton Richard Chamberlain is procured for their defence. The circumstances by which he was contacted and retained are unusual, in that his law practice is corporate taxation and not criminal defense. He nonetheless takes on the case, and his professional and personal lives begin to unravel.Plagued by bizarre dreams, Burton begins to sense an otherworldly connection to one of the accused David Gulpilil. He also feels connected to the increasingly strange weather phenomena besetting the city. His dreams intensify along with his obsession with the murder case, which he comes to believe is an Aboriginal tribal killing by curse, in which the victim believed. Learning more about Aboriginal practices and the concept of Dreamtime as a parallel world of existence, Burton comes to believe the strange weather bodes of a coming apocalypse. ........

Source: Wikipedia