Sylvi's child is run over by a bus, prompting her to drink poison. She goes blind in the process, causing her husband to lust after her much younger sister. After undergoing a dangerous operation to regain her sight, she hides her repaired vision behind dark eyeglasses, so she can spy on her sister and husband as they carry on their affair.

• Teuvo Tulio
• Regina Linnanheimo
• Eino Katajavuori
• Toini Vartiainen
• H. Stenroos
• Nora Mäkinen