The film tells about the so-called phenomenon of twins, and tries to solve the mystery of their identity from a scientific point of view.












The frame shows twin girls in identical dresses.
A woman shows them a photo where she is little, asks to show where each of them is, the girls show, get confused, argue, cannot identify themselves in the photo.
The sea, a wave washes the shore.
South.
Summer, a panorama of the seashore, two running figures are visible.
Two twin boys are running along the sandy shore, splashing in the water in the shallows, playing, etc.
Freeze frame - twin boys on the seashore.
Little triplets with identical pink bows are sitting on the shore - building a sand castle.
An ancient stone wall, a panorama of an iron forged door.
A quote from Charles Darwin.
An image of the Egyptian pyramids.
Various shots of Egyptian gods, ancient tombs, temples, the Colosseum, etc.
The shot shows figures of Osiris and Isis, Apollo and Artemis, equestrian figures depicting the Dioscuri brothers, a sculpture of a she-wolf, and the brothers Romulus and Remus.
An old engraving depicting the brothers Esau and Jacob.
An old book in Latin, "Fortunius licetus de monstris", with the title page in the shot, pages turning, various images of twins, freaks, witches being burned at the stake, etc.
The photograph shows Canadian farmer Dion with his wife and children.
Fragments from a black-and-white documentary about the Dion family are shown, showing how the family is being built a new big house, how they are helped with raising the children, various shots of little quintuplets, etc.
The photographs show the farmer with his wife, the quintuplets, and other family members.
Chronicle of the 1970s - Poland, a film about quintuplets from Gdansk, the frame shows various shots of the kids, games, walks, etc.
A fragment of an old painting depicting twins ("Leda and the Swan").
Close-up - eggs are floating in a transparent vessel.
Laboratory, vessels with eggs, fry, special equipment, employees working.
A female employee looks through a microscope.
Close-up - an egg with two dots (the eyes of the future fish).
Close-up - a panorama of the eggs, black dots are visible.
Close-up - fused trout fry.
A drawing depicting Siamese twins Chang and Eng.
The photograph shows elderly Chang and Eng.
Groups of twins - a man and a woman - are descending the escalator stairs.
In the frame - twin sisters Irina and Marina Sattarov.
The Sattarovs talk to the filmmakers, tell how they took advantage of their resemblance at school and fooled teachers.
A man talks to twin girls, asks various questions.
In the frame are the twin brothers Mikhail and Vladimir Romanovsky.
The brothers give interviews, answer questions.
In the frame are the sisters Lydia and Raisa Streltsov.
The Streltsovs answer questions, remember their childhood, etc.
Panorama of a group of people consisting of pairs of twins (in the frame are men and women of different ages).
Various shots with twin children.
General plan - twin children on the stairs.
A large group of twin children descending the stairs in the park.
Park, river, stone sculpture in the form of an octopus, pairs of twins standing near it.
Bushes with blooming roses, panorama of two twin children in identical suits.
Photograph of two twins James and Rhys, separated in childhood.
Chronicle of the 30-40s - USA, America, various shots with cities, skyscrapers, rodeo, cowboys in the pasture, etc.
Close-up - a special lamp is on, emitting intermittent light.
An experiment is underway, two male twins are sitting next to each other with sensors attached to their heads.
On the monitor - two almost identical curves showing brain biocurrents (data for each of the twins).
Laboratory - employees in white coats are working with equipment.
On the monitor, encephalograms of identical and non-identical twins are compared.
In the frame - pop artists the Vasyutinsky brothers with their father.
In the photo - Vasyutinsky Sr. with the twins.
The Vasyutinskys are looking at family photos Close-up - old photos of their grandfather-actor and grandmother-ballerina (in their youth).
Close-up - the face of one of the Vasyutinsky brothers.
Photos of the brothers during their service in the navy.
The brothers and their father are sitting at the table, talking, laughing, etc.
Various photographs from the filming of the movie "World Champion".
Fragments from the feature film "World Champion" (1954, dir. V. Gonchukov).
Chronicle of the 1960s - Czechoslovakia, the wedding of two pairs of twins.
In the frame - the Geodakyan family.
The mother of two non-identical twins Aya and Elena is speaking, a panorama of the sisters, their older brother is sitting next to them.
American chronicle of the 30s (MGM news) - various shots with twins, a parade of twins, etc.
Chronicle of the 1970s - Belgium, a parade of twins during the 5th congress of twins.
Leningrad, city streets, traffic in the frame.
The Vasyutinsky twins come out of the theater doors, each gets into his own car.
In the frame, a young man on special equipment, his lungs are being examined.
Doctors in white coats are sitting near the equipment looking at the readings of the devices, a panorama of the young man's twin brother, who is sitting next to the doctors.
Different shots with the twin brothers.
Close-up - the doctor's face.
The doctor is looking at the image of the lung displayed on the monitor.
The doctor is looking at the images of the lungs of both brothers.
Two female twins are having sensors attached to their heads to study the effectiveness of a new drug for hypertensive patients.
One of the sisters is given a normal pill, and the other is given a dummy, then they look at the readings of the devices that record the women's well-being.
Close-up - the frame shows the readings of the devices (curved lines).
Close-up - the screen of the oscilloscope with the image.
Panorama of the twin women with sensors on their heads.
The operating room, in the frame, the doctors are preparing for the operation, a boy is lying on the operating table, his twin brother is watching him through the window.
An iron forged door opens, we see different pairs of twins in the yard.
Panorama of twins and triplets.
The seashore, twin brothers are playing by the water.
Little triplet girls sit on the beach, building a sand castle.
Twin boys pose against the sea.
Waves wash the shore.
Twins, sea, children, laboratory
1970 1930-1940 1960
Poland Belgium USA Leningrad
Summer