Omer the Tourist in Star Trek (1973)

The spaceship Enterprise under the command of Captain Kirk has embarked on a new mission. They need to receive the reports from Professor Krater, who lives alone with his wife on the planet Orin 7. Mister Spak lands on the planet with a team. However, one of the crew dies unexpectedly. The doctor had difficulty determining the cause of death. The killer is the professor's wife Nancy. The professor decides to lure a creature from ancient times to the planet with a time machine to save him. Omar, a tourist, is about to be married to a woman he didn't know at the time. During the wedding ceremony, the machine pulls Omar to Orin 7. The tourist thinks that Omar survived. But the adventure is just beginning.

Comedy, Science Fiction