It’s amazing what a secret can do to a person. Keeping secrets among friends can be fun, or helpful when you need to confide in someone you trust. Other secrets can do more harm than good. They can fester inside you and cause endless pain. In “Buried Child,” this is the case. The family is permanently altered by their secret, which becomes a growing moral cancer to them, leaving each impotent in their own way. The play takes place on Dodge’s farm. About thirty years ago, the farm was fertile and prosperous. Dodge and Ha ....