Naughty schoolgirl Imogen has been set lines to do in the detention class but as is usual with her she has messed them up and so now she is in trouble, The head mistress was just about to go home and is not happy at having to stay behind to deal with this problem girl. She decides that a wooden backed brush will be just the implement to inflict some severe pain on this naughty bare bottom. Imogen has to raise her school skirt and take down her regulation knickers. She then gets a severe beating with the hairbrush on her bottom.