[Machine Translation] The most hilarious ghost extermination by the most hilarious members of the group begins! --New York City. Dr. Erin Gilbert ( Kristen Wiig ), a doctor of physics at Columbia University, is working day and night to prepare for her tenure review at the university. However, when she and Abby (Melissa McCarthy) accidentally conduct a ghost investigation together, they are unilaterally fired from their jobs at the university.