奥斯卡奖得主麦克而凯恩和本金斯利合演。福尔摩斯帮伦敦警察厅破获无数案件，但是福尔摩斯并不存在，而这位大侦探的角色一直由一个叫雷金纳得琴凯德德人扮演，他是华生雇佣德临时“演员”，笨拙又酗酒，为此，华生想要解雇他，正当此时，财务部官员要拜访福尔摩斯，华生只好留着他，继续这弥天大谎，“依靠”他破解新谜团。

When Ivy discovers the school bathroom is haunted, Bean helps Ivy to harness her witchlike powers. With the help of their classmates, Ivy and Bean orchestrate a ritual that will free the ghosts, save the school and also mess up Nancy’s day.