Dinah Deville, wearing only panties, a garter and stockings, with hands tied, is lowered into the quicksand vat. She pleads with her captor to let her go, but to no avail. At one point, the captor stops lowering Dinah, who thinks she will be set free, but that is only a trick. Includes a submersion and an after-the-sink scene at the very end.