Ten Years Challenge (1970)

Atya, a 27-year-old woman whose life has fallen after being decided unilaterally by Diga. As if she hasn't had enough of being dumped by her boyfriend since high school, she also loses her job. One day Atya has an accident on her way home from a high school reunion. As soon as she wakes up, she finds herself thrown back ten years when he was still 17 years old. She also tries to improve the situation so that in the future her relationship with Diga can last. But the universe had other plans.