On page 8, this sentence appears inside a thought / narration bubble from the lead female character:
After juggling with Google Translate, I believe the character is saying that yesterday the uncle's wife received a phone call from a man.
Then I am lost. Was the phone call made to a hospital? There is no previous mention of the uncle's wife being in a hospital. Or was a person from the hospital calling? If the latter then what's the に after 病院 for?