Love in Idleness is a light comedy written by Terence Rattigan in 1944. It was rewritten drastically before it was performed on the stage. Michael Brown, one of the main characters, whose model is said to be Rattigan himself, was first created as a serious character, but was later changed into a childish villain interfering between John and his mother Olivia. Hence our aim here to examine what his change meant to the work, to the dramatist and also to his writing career.