As professional clowns Tito and Simon are traveling, they happen upon an abandoned child, whom they take in and name Simonetta. When Simonetta is older, she becomes a circus performer herself. One day she is looking for roses, and climbs into the garden of Count Luigi Ravelli. The count becomes infatuated with her, but she leaves as soon as possible. Sometime later, Ravelli consults a doctor about his fits of uncontrollable laughter, and there he meets Tito, who has come to seek help for his fits of uncontrollable weeping. The two decide to help each other, and they establish a friendship, but problems arise when they realize that they are both in love with Simonetta.

As professional clowns Tito and Simon are traveling, they happen upon an abandoned child, whom they take in and name Simonetta. When Simonetta is older, she becomes a circus performer herself. One day she is looking for roses, and climbs into the garden of Count Luigi Ravelli. The count becomes infatuated with her, but she leaves as soon as possible. Sometime later, Ravelli consults a doctor about his fits of uncontrollable laughter, and there he meets Tito, who has come to seek help for his fits of uncontrollable weeping. The two decide to help each other, and they establish a friendship, but problems arise when they realize that they are both in love with Simonetta.

以打拳为生的拳虫高天误打误撞救下革命党人阎伯，二人英雄相重，成为忘年交。却遭到杀手阎火火追杀，高天父亲因此被误杀，高天也被卷入以袁克定为首的肃杀革命党事件中，高天不得不出手反击。

拳手高天隐于市井与世无争，不想挚友小马找他出山协助一桩棘手的案件被高天拒绝，就在此时小马忽然被杀，高天被冠以杀人凶手的罪名。高天为追查杀害挚友的凶手迫不得已出手，卷入袁世凯的保皇事件中。

以打拳为生的拳虫高天误打误撞救下革命党人阎伯，二人英雄相重，成为忘年交。却遭到杀手阎火火追杀，高天父亲因此被误杀，高天也被卷入以袁克定为首的肃杀革命党事件中，高天不得不出手反击。

拳手高天隐于市井与世无争，不想挚友小马找他出山协助一桩棘手的案件被高天拒绝，就在此时小马忽然被杀，高天被冠以杀人凶手的罪名。高天为追查杀害挚友的凶手迫不得已出手，卷入袁世凯的保皇事件中。