u/Impressive-Lime-1227

I have an indoor rose plant that was flourishing but it seems that most of it is now dying and I don’t know why (I haven’t done anything different to it). It seems to be that the leaves are being covered by a web type stuff I cant see any beasties on the plant but there are little lighter things (pic 3). It sits on my office window sill upstairs and gets continuous light throughout the day (but not direct). Pot has drainage and it likes its water. It isn’t waterlogged. Not sure what type of soil is in the pot. Is there any way I can save this plant?