AllenSunshinetellsthestoryofaformermusicmogulwhoretreatstoanisolatedlakesidehometogrievehisfamouswife’ssuicide.Hecopesbycomposingambient-electronicmusicandnurturinganunexpectedfriendshipwithtwoyoungboyswhomhemeetsonthelakefishing.Throughoutthecourseofhisstagesofgrief,Allenencounterscharactersthatremindhimofwhathe’slostandforgottenandwhathehopestogainandreconcile.