Peter Venkman (Bill Murray)’s Timeline and Summary

Dr. Venkman tries to seduce a co-ed with a sham experiment.
He accompanies Ray and Egon on their first real ghost-spotting.
Yeager gives Venkman and the boys the boot from Columbia.
Pete comes up with idea for the Ghostbusters.
He investigates Dana's Zuul problem and puts the moves on her.
With Egon and Ray, Venkman busts his first ghost.
Dr. Venkman ticks off Walter Peck the EPA agent.
After making a date with Dana, he finds her possessed by Zuul.
He gets arrested along with the other Ghostbusters after Peck explodes the containment unit.
Pete, Ray, Egon, and Winston are dubbed by the mayor to save the city from Gozer and his minions.
With the rest of the boys, Venkman zaps Gozer back into another dimension.
He plants one on Dana in front of the adoring crowds.