The 27th Day

The 27th Day is a 1957 American science fiction film from Columbia Pictures, produced by Helen Ainsworth, directed by William Asher, and starring Gene Barry, Valerie French, George Voskovec, and Arnold Moss. The screenplay is by John Mantley, based on his original novel.

Returned to Earth, Eve Valerie French throws her capsules into the English Channel and then books a flight to Los Angeles. Su Tan Marie Tsien chooses to commit suicide, causing her capsules to selfdestruct. The others go about their daily tasks undisturbed until the next day, when The Alien commandeers all electronic communications and reveals to the world the existence and power of the capsules. Overhearing the broadcast while on a trip to the U. S., Bechner George Voskovec is hit by a car while crossing the street and is taken to the hospital, while Pvt. Godofsky Azemat Janti is detained by his superiors. Arriving in Los Angeles, Eve is met by a nowdisguised Clark Gene Barry, who takes her to a closed race track where they can hide, undetected. Godofsky is interviewed by a Soviet general Stefan Schnabel who, dissatisfied with his vague story, orders him subjected to intense interrogation.Panic over the Aliens crisis grows in the days that follow. Repeated beatings leave Godofsky in shock, while a recovering Bechner refuses to reveal the details of The Aliens plan. After two Communist agents nearly succeed in assassinating Bechner, and an innocent man who looked like Clark is killed by a mob, Clark and Eve reveal themselves and are taken into government custody. Through the application of sodium pentothal to Godofsky, the Soviets discover The Aliens plan and gain access to his capsules. Their resulting announcement fuels global anxiety, prompting the other two Su Tan having committed suicide shortly after receiving her capsules to cooperate with U. S. authorities. Confronted with an ultimatum for all U. S. military forces to withdraw throughout the world, the government tests one of Bechners capsules to verify the Soviet threat a dying volunteer is left on a raft far out in the ocean. After opening a capsule, he reads his exact coordinates out loud and is instantaneously vaporized. The U. S. begins withdrawing its forces. ........

Source: Wikipedia