life insurance mistakes

If you take an overdose (error) or to commit suicide, her family still can claim on your life insurance?
I am not suicidal by the way I'm writing a movie script and the need for the answer.
Most policies have seen have a 2 year or longer period waiting to collect on suicide and some do not pay for this cause of death for all. Depends on what you have in politics when you buy it. This wait is valid 2 years for a series of policies to all causes of death, but I think most of what you paid restitution in if you die before it had sufficient insurance. Some will not pay for conditions they say they are also preexisting. Just read everything more closely.