My acer laptop wont start

Hello,

My acer laptop freezed and went off while i was watching a movie. When i switch it on the screen was blank and there was a fan noise i think. Next day i try to switch it on, it went on but i realised tge battery was low so i plug the charger. Immediately after i plugged the chatger it went off. Ever since then, it wont start, its dead. What can i do? What is the problem?