You have the right to privacy in your home. For example, you should ask for a lock on the door of your room as well as a key to the house where you live and work. You may spend your non-working hours as you wish. Your employer cannot insist that you spend your non-working time in her or his house. You can refuse to do work that is not in your employment contract.
Your legal documents, such as your passport and work permit, are your private property. Do not give them to your employer.
As a temporary foreign worker, you have the same rights as other Canadians working in your field. Find out more about Temporary foreign workers - Your rights and the law.