Out Of Contact (1970)

Five university friends receive an amulet each from a Fortune Teller representing five elements: Wood, Earth, Fire, Wind and Gold. After interrupting the breakup of a couple, one of the girls from the group goes missing and is later found dead. Her cause of death related to her amulet. The remainder of the group receive a text message threatening to kill them using their amulet elements - but can they work out the mysterious person behind the message and stop their impending death before its too late?