Nick (Jason Bateman) has been working hard for eight years in the company, working hard from dawn to dusk. His boss Dave (Kevin Spacey) promised him a promotion, but he regretted it and ridiculed him severely. Dale (Charlie Day) is a dental assistant who has long been fed up with the wanton sexual harassment of his boss Julia (Jennifer Aniston). Kurt (Jason Sudeikis) was originally regarded as the company's successor, but his boss suddenly died suddenly, and his son Bobby (Colin Farrell) took over the company without authorization, and was proud of his second-generation spirit, and was about to bring the company down. Three old friends who were frustrated by the evil boss met in a bar, and suddenly decided to kill the boss collectively, and the three of them avoided their bosses separately, so that they could escape suspicion and achieve a perfect murder. After careful planning, the three old friends each came up with a unique trick, and a hilarious "kill the boss" plan began...