It's Miles Cheever's last day at work as he is retiring after 20 years of service. His boss and colleagues throw a little farewell party for him at the office and give him his going away present, a plain pen and pencil set. At home with his wife, they review his plans to empty the vault at work, which he manages to do without difficulty. It seems Cheever is leading a double life however and plans on running off with his girlfriend. When their airplane is delayed because of a bomb threat, they face the risk of being discovered.