sentences

Hi there, can someone please check my sentences below:

1. 'Inspired by “Top 10 Ghost Stories on Campus”, this film tells a story of medical graduates retuning to a deserted old campus and their bizarre encounters.

2. A school campus was said to be haunted after a mysterious death of a medical student whose body was nailed under the bed of her best friend. Years later, six medical graduates came to the deserted campus looking for herbal medicine. In spite of warnings from the school janitor, they decided to spend a night on campus. Their nightmares began when one of them went missing the next day.

3. Gao Yuan was abducted and trained as a cold-blooded boxer since he was a boy. He wanted a new life when he fell in love with the girl he saved years ago.

4. Gao Yuan was abducted and sold to gangsters as a boy to be trained as an underground boxer. He saved a girl Sasha from being sold to underground brothel. Many years later, Gao became a cold-blooded boxer. He and Sasha reunited and fell in love. Gao wanted to leave the underworld for Salsa before he found out that his final days were numbered due to prolonged damages to his brains.