A Certain Time, A Certain Place

Can a person living in the present dare to go back through time to another era? 

Laura has lost her husband; facts come to light that their marriage was not all it seemed.

Grieving and at a loose end, she befriends an elderly professor - a decision that sends her life in a whole different direction.

Life becomes exhilarating, frightening, even shocking.  

Could she live like this? Or is it best to go back to a simple, normal life - safe and secure, but without excitement.