A woman emigrates to Mexico and leaves her young daughter with relatives. After a few years she returns to look for her but they are not going to make it easy for her.
A powerful man posing as a gladiator in Rome's fourth century discovers a plan to put the beautiful Queen in prison, which he thwarts by exposing a sinister duke as a traitor.
The evil scientist Dr. Caronte plots to revive the brains of three dead scientists and use them to obtain the formula for the super-powerful neutron bomb.
Jean Wells believes she kills a man during a hit-and-run one evening. A man named Joe appears and, in exchange for keeping silent about the murder, blackmails Wells.
When a worker digging up a rose bed in the garden of a rich, influential factory owner uncovers a skeleton, suspicion spreads: Is the man who is so respected in the town possibly a murderer?