Test tube babies is a movie about babies that are made in a laboratory. In normal baby-making, an egg from a woman and sperm from a man meet and grow into a baby inside the woman's body. But sometimes, for various reasons, this cannot happen naturally.
So, scientists take an egg from a woman and a sperm from a man and put them together in a special container called a test tube. The test tube is full of special liquid that helps the egg and sperm join together and start growing into a baby.
The scientists then watch and take care of the test tube until the baby gets big enough to be put into the woman's body. This process is called in vitro fertilization.
Once the baby is big enough, doctors carefully put it inside the woman's body so it can grow the rest of the way just like a regular baby.
Test tube babies is a movie about the people who make this happen and the families who want to have kids but need a little extra help to do it.