Ants (1977)

An old-fashioned, lakeside hotel targeted for purchase by an unsavory gambling casino promoter and situated next to a construction site, is attacked by an army of poisonous ants. Efforts to contain the ants and rescue those trapped in the hotel are hampered by the progress of the creepy crawlers upward from floor to floor.

Robert Foxworth, Suzanne Somers, Myrna Loy, Lynda Day George, Bernie Casey, Karen Lamm.