An alien life form, resembling glowing rocks, summons forth a huge, rolling ball of fire, whenever threatened, that incinerates people.

Two con artists join forces and pose as brother and sister. He then meets rich widows through the "personals" sections of newspapers, marries them, and both kill the widows for their money.

The eccentric Bullock household again need a new butler. Daughter Irene encounters bedraggled Godfrey Godfrey at the docks and, fancying him and noticing his obviously good manners, gets him the job. He proves a great success, but keeps his past to himself. When an old flame turns up Irene's sister Cordelia starts making waves.

An "unknown force" declares war against planet Earth when the United Nations disobeys warnings to cease and desist in its attempts at assembling the first satellite in the atmosphere.