A hideous death lurked unseen in the river...
When flesh-eating piranhas are accidentally released into a summer resort's rivers, the guests become their next meal.
Bradford Dillman
Paul Grogan
Heather Menzies
Maggie McKeown
Kevin McCarthy
Dr. Robert Hoak
Keenan Wynn
Jack
Dick Miller
Buck Gardner
Barbara Steele
Dr. Mengers
Belinda Balaski
Betsy
Melody Thomas Scott
Laura Dickinson
Bruce Gordon
Colonel Waxman
Barry Brown
Trooper
Paul Bartel
Mr. Dumont
Shannon Collins
Suzie Grogan
