Slade is hired to stop a wedding. When he arrives he is too late. When the bridegroom is killed, guilt is cast on the woman who hired Slade. He believes she is innocent but he must find the true murderer to clear her.

An old man with a fading memory gives an invoice to the Widow Rankin. He says it was borrowed by her husband. She is not sure if it is legitimate and hires Slade to determine if the money is really owed.