It was after his affair with Lucy Chapman that he wanted to turn over a new leaf.

6 seconds sound clip from the The Big Heat (1953) movie soundboard.

You can hear this line at 01:11:07.605 in the Blu-ray version of the movie.

Quote context

[...]

- You told Lagana about Lucy.

- You have a horrid mind. Poor Lucy.

- You were delighted. You were even happy when your husband blew his brains out.

- We were getting along very well until the soul struggling began.

- Want to know something ridiculous?

- It was after his affair with Lucy Chapman that he wanted to turn over a new leaf.

- A city is being strangled by a gang of thieves, and you protect Lagana and Stone for the sake of a soft, plush life.

- The coming years are going to be just fine.

- There aren't gonna be any coming years for you. None at all.

- I don't threaten easily.

- If anything happens to you, the evidence comes out. That's the way you arranged it, didn't you, bright lady? You got it all put away someplace.

[...]