1. Strong medicine literally means medicine which
is very strong in order to be effective against an illness, but figuratively it means that a problematic situation needs strong actions to stop it.
2. Dr Mark Latto; California; murder mystery.
3. Open
4. San Francisco, Monterey, Santa Cruz; it is a
coastal resort, with hotels and restaurants; people surf there; there are sea lions; and the University of California has a seat there.
5. Several are doctors, one is a policeman; because one of the doctors is dead, and the police investigate.