Alternate Ending?

We have planned and shot our ending where it ends with the Dad saying about how he never though his lie to protect his son from guilt would go so out of control.

Shortly after shooting this I watched an episode of Midsummer Murders. Although the style of this is very different from what we have done it ended with a bit of a surprise twist.

I was then wondering wether we could end ours with some sort of twist so I lightly planned a few ideas

1. Paul is being taken away to an asylum-possibly a bit too cheesy and I think it would be difficult for us to film this well and effectively
2. Pauls dad tells Paul what he has done and it ends with Paul sitting on the bed in his room and then it fades to black-I think that is the ending people might expect and ending with it like that might be too predictable
3. Turns out there actually is a sockmonster, and it shows a shot of him removing a sock at the end-decided not to use this as it would give it too many twists and may make our film too confusing

After coming up with some possible other endings we decided that we liked the ending we had the most and couldn't think of an idea that was better so decided to settle with the one we already have.