When a school is held captive by the man responsible for the death of his sister, a doctor has visions of a lost childhood revealing the secret between his sister and the man that now threatens his daughter's life.

Still confusing. Because of the sequence of the words it first sounds like the man killed his own sister and is no threatening to kill his own daughter. I know that’s not what you meant, but If I read this logline i’d assume the writer doesn’t know how to tell a story… no matter how good a story it might be.

So close I can taste it. You have definitely given me something to work with.

Thanks.