how to save for retirement at 45 years old?

Hi All,

My dad is currently 45 years old and both him and my mom have been saving for retirement by keep money in the house. So the money is not in saving or in an IRA. I have been reading about Roth IRA and it seems good for young people, but would that be the way for my parents? they have about 50K+. What would you suggest they do?

Thanks.